21568441755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1\times {\mathrm{577}}^1$

素因数の和:1109

約数の個数: 128

約数和(自身を含む): 42694686720

約数和(自身を除く): 21126244965

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 41, 57, 95, 105, 123, 133, 205, 285, 287, 399, 457, 577, 615, 665, 779, 861, 1371, 1435, 1731, 1995, 2285, 2337, 2885, 3199, 3895, 4039, 4305, 5453, 6855, 8655, 8683, 9597, 10963, 11685, 12117, 15995, 16359, 18737, 20195, 23657, 26049, 27265, 32889, 43415, 47985, 54815, 56211, 60585, 60781, 70971, 76741, 81795, 93685, 118285, 130245, 131159, 164445, 165599, 182343, 230223, 263689, 281055, 303905, 354855, 356003, 383705, 393477, 449483, 496797, 655795, 791067, 827995, 911715, 1068009, 1151115, 1318445, 1348449, 1780015, 1845823, 1967385, 2247415, 2483985, 2492021, 3146381, 3955335, 5010091, 5340045, 5537469, 6742245, 7476063, 9229115, 9439143, 10811249, 12460105, 15030273, 15731905, 25050455, 27687345, 32433747, 35070637, 37380315, 47195715, 54056245, 75151365, 75678743, 105211911, 162168735, 175353185, 205413731, 227036229, 378393715, 526059555, 616241193, 1027068655, 1135181145, 1437896117, 3081205965, 4313688351, 7189480585, 21568441755]

約数ペア:

[(1, 21568441755), (3, 7189480585), (5, 4313688351), (7, 3081205965), (15, 1437896117), (19, 1135181145), (21, 1027068655), (35, 616241193), (41, 526059555), (57, 378393715), (95, 227036229), (105, 205413731), (123, 175353185), (133, 162168735), (205, 105211911), (285, 75678743), (287, 75151365), (399, 54056245), (457, 47195715), (577, 37380315), (615, 35070637), (665, 32433747), (779, 27687345), (861, 25050455), (1371, 15731905), (1435, 15030273), (1731, 12460105), (1995, 10811249), (2285, 9439143), (2337, 9229115), (2885, 7476063), (3199, 6742245), (3895, 5537469), (4039, 5340045), (4305, 5010091), (5453, 3955335), (6855, 3146381), (8655, 2492021), (8683, 2483985), (9597, 2247415), (10963, 1967385), (11685, 1845823), (12117, 1780015), (15995, 1348449), (16359, 1318445), (18737, 1151115), (20195, 1068009), (23657, 911715), (26049, 827995), (27265, 791067), (32889, 655795), (43415, 496797), (47985, 449483), (54815, 393477), (56211, 383705), (60585, 356003), (60781, 354855), (70971, 303905), (76741, 281055), (81795, 263689), (93685, 230223), (118285, 182343), (130245, 165599), (131159, 164445)]