21974004

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 65065728

約数和(自身を除く): 43091724

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 37, 39, 47, 52, 54, 74, 78, 81, 94, 108, 111, 117, 141, 148, 156, 162, 188, 222, 234, 243, 282, 324, 333, 351, 423, 444, 468, 481, 486, 564, 611, 666, 702, 846, 962, 972, 999, 1053, 1222, 1269, 1332, 1404, 1443, 1692, 1739, 1833, 1924, 1998, 2106, 2444, 2538, 2886, 2997, 3159, 3478, 3666, 3807, 3996, 4212, 4329, 5076, 5217, 5499, 5772, 5994, 6318, 6956, 7332, 7614, 8658, 8991, 10434, 10998, 11421, 11988, 12636, 12987, 15228, 15651, 16497, 17316, 17982, 20868, 21996, 22607, 22842, 25974, 31302, 32994, 35964, 38961, 45214, 45684, 46953, 49491, 51948, 62604, 65988, 67821, 77922, 90428, 93906, 98982, 116883, 135642, 140859, 148473, 155844, 187812, 197964, 203463, 233766, 271284, 281718, 296946, 406926, 422577, 467532, 563436, 593892, 610389, 813852, 845154, 1220778, 1690308, 1831167, 2441556, 3662334, 5493501, 7324668, 10987002, 21974004]

約数ペア:

[(1, 21974004), (2, 10987002), (3, 7324668), (4, 5493501), (6, 3662334), (9, 2441556), (12, 1831167), (13, 1690308), (18, 1220778), (26, 845154), (27, 813852), (36, 610389), (37, 593892), (39, 563436), (47, 467532), (52, 422577), (54, 406926), (74, 296946), (78, 281718), (81, 271284), (94, 233766), (108, 203463), (111, 197964), (117, 187812), (141, 155844), (148, 148473), (156, 140859), (162, 135642), (188, 116883), (222, 98982), (234, 93906), (243, 90428), (282, 77922), (324, 67821), (333, 65988), (351, 62604), (423, 51948), (444, 49491), (468, 46953), (481, 45684), (486, 45214), (564, 38961), (611, 35964), (666, 32994), (702, 31302), (846, 25974), (962, 22842), (972, 22607), (999, 21996), (1053, 20868), (1222, 17982), (1269, 17316), (1332, 16497), (1404, 15651), (1443, 15228), (1692, 12987), (1739, 12636), (1833, 11988), (1924, 11421), (1998, 10998), (2106, 10434), (2444, 8991), (2538, 8658), (2886, 7614), (2997, 7332), (3159, 6956), (3478, 6318), (3666, 5994), (3807, 5772), (3996, 5499), (4212, 5217), (4329, 5076)]