21374340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:501

約数の個数: 96

約数和(自身を含む): 65573760

約数和(自身を除く): 44199420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 67, 78, 130, 134, 156, 195, 201, 260, 268, 335, 390, 402, 409, 670, 780, 804, 818, 871, 1005, 1227, 1340, 1636, 1742, 2010, 2045, 2454, 2613, 3484, 4020, 4090, 4355, 4908, 5226, 5317, 6135, 8180, 8710, 10452, 10634, 12270, 13065, 15951, 17420, 21268, 24540, 26130, 26585, 27403, 31902, 52260, 53170, 54806, 63804, 79755, 82209, 106340, 109612, 137015, 159510, 164418, 274030, 319020, 328836, 356239, 411045, 548060, 712478, 822090, 1068717, 1424956, 1644180, 1781195, 2137434, 3562390, 4274868, 5343585, 7124780, 10687170, 21374340]

約数ペア:

[(1, 21374340), (2, 10687170), (3, 7124780), (4, 5343585), (5, 4274868), (6, 3562390), (10, 2137434), (12, 1781195), (13, 1644180), (15, 1424956), (20, 1068717), (26, 822090), (30, 712478), (39, 548060), (52, 411045), (60, 356239), (65, 328836), (67, 319020), (78, 274030), (130, 164418), (134, 159510), (156, 137015), (195, 109612), (201, 106340), (260, 82209), (268, 79755), (335, 63804), (390, 54806), (402, 53170), (409, 52260), (670, 31902), (780, 27403), (804, 26585), (818, 26130), (871, 24540), (1005, 21268), (1227, 17420), (1340, 15951), (1636, 13065), (1742, 12270), (2010, 10634), (2045, 10452), (2454, 8710), (2613, 8180), (3484, 6135), (4020, 5317), (4090, 5226), (4355, 4908)]