21111510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{439}}^1$

素因数の和:685

約数の個数: 64

約数和(自身を含む): 58291200

約数和(自身を除く): 37179690

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 229, 439, 458, 687, 878, 1145, 1317, 1374, 1603, 2195, 2290, 2634, 3073, 3206, 3435, 4390, 4809, 6146, 6585, 6870, 8015, 9219, 9618, 13170, 15365, 16030, 18438, 24045, 30730, 46095, 48090, 92190, 100531, 201062, 301593, 502655, 603186, 703717, 1005310, 1407434, 1507965, 2111151, 3015930, 3518585, 4222302, 7037170, 10555755, 21111510]

約数ペア:

[(1, 21111510), (2, 10555755), (3, 7037170), (5, 4222302), (6, 3518585), (7, 3015930), (10, 2111151), (14, 1507965), (15, 1407434), (21, 1005310), (30, 703717), (35, 603186), (42, 502655), (70, 301593), (105, 201062), (210, 100531), (229, 92190), (439, 48090), (458, 46095), (687, 30730), (878, 24045), (1145, 18438), (1317, 16030), (1374, 15365), (1603, 13170), (2195, 9618), (2290, 9219), (2634, 8015), (3073, 6870), (3206, 6585), (3435, 6146), (4390, 4809)]