21429440

素因数分解:

$2^6\times 5^1\times {\mathrm{167}}^1\times {\mathrm{401}}^1$

素因数の和:585

約数の個数: 56

約数和(自身を含む): 51462432

約数和(自身を除く): 30032992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 167, 320, 334, 401, 668, 802, 835, 1336, 1604, 1670, 2005, 2672, 3208, 3340, 4010, 5344, 6416, 6680, 8020, 10688, 12832, 13360, 16040, 25664, 26720, 32080, 53440, 64160, 66967, 128320, 133934, 267868, 334835, 535736, 669670, 1071472, 1339340, 2142944, 2678680, 4285888, 5357360, 10714720, 21429440]

約数ペア:

[(1, 21429440), (2, 10714720), (4, 5357360), (5, 4285888), (8, 2678680), (10, 2142944), (16, 1339340), (20, 1071472), (32, 669670), (40, 535736), (64, 334835), (80, 267868), (160, 133934), (167, 128320), (320, 66967), (334, 64160), (401, 53440), (668, 32080), (802, 26720), (835, 25664), (1336, 16040), (1604, 13360), (1670, 12832), (2005, 10688), (2672, 8020), (3208, 6680), (3340, 6416), (4010, 5344)]