21623140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:785

約数の個数: 96

約数和(自身を含む): 59673600

約数和(自身を除く): 38050460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 190, 209, 220, 266, 308, 380, 385, 418, 532, 665, 739, 770, 836, 1045, 1330, 1463, 1478, 1540, 2090, 2660, 2926, 2956, 3695, 4180, 5173, 5852, 7315, 7390, 8129, 10346, 14041, 14630, 14780, 16258, 20692, 25865, 28082, 29260, 32516, 40645, 51730, 56164, 56903, 70205, 81290, 98287, 103460, 113806, 140410, 154451, 162580, 196574, 227612, 280820, 284515, 308902, 393148, 491435, 569030, 617804, 772255, 982870, 1081157, 1138060, 1544510, 1965740, 2162314, 3089020, 4324628, 5405785, 10811570, 21623140]

約数ペア:

[(1, 21623140), (2, 10811570), (4, 5405785), (5, 4324628), (7, 3089020), (10, 2162314), (11, 1965740), (14, 1544510), (19, 1138060), (20, 1081157), (22, 982870), (28, 772255), (35, 617804), (38, 569030), (44, 491435), (55, 393148), (70, 308902), (76, 284515), (77, 280820), (95, 227612), (110, 196574), (133, 162580), (140, 154451), (154, 140410), (190, 113806), (209, 103460), (220, 98287), (266, 81290), (308, 70205), (380, 56903), (385, 56164), (418, 51730), (532, 40645), (665, 32516), (739, 29260), (770, 28082), (836, 25865), (1045, 20692), (1330, 16258), (1463, 14780), (1478, 14630), (1540, 14041), (2090, 10346), (2660, 8129), (2926, 7390), (2956, 7315), (3695, 5852), (4180, 5173)]