21139170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{809}}^1$

素因数の和:899

約数の個数: 64

約数和(自身を含む): 55520640

約数和(自身を除く): 34381470

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 67, 78, 130, 134, 195, 201, 335, 390, 402, 670, 809, 871, 1005, 1618, 1742, 2010, 2427, 2613, 4045, 4355, 4854, 5226, 8090, 8710, 10517, 12135, 13065, 21034, 24270, 26130, 31551, 52585, 54203, 63102, 105170, 108406, 157755, 162609, 271015, 315510, 325218, 542030, 704639, 813045, 1409278, 1626090, 2113917, 3523195, 4227834, 7046390, 10569585, 21139170]

約数ペア:

[(1, 21139170), (2, 10569585), (3, 7046390), (5, 4227834), (6, 3523195), (10, 2113917), (13, 1626090), (15, 1409278), (26, 813045), (30, 704639), (39, 542030), (65, 325218), (67, 315510), (78, 271015), (130, 162609), (134, 157755), (195, 108406), (201, 105170), (335, 63102), (390, 54203), (402, 52585), (670, 31551), (809, 26130), (871, 24270), (1005, 21034), (1618, 13065), (1742, 12135), (2010, 10517), (2427, 8710), (2613, 8090), (4045, 5226), (4355, 4854)]