21101528

素因数分解:

$2^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3457}}^1$

素因数の和:3579

約数の個数: 32

約数和(自身を含む): 45645600

約数和(自身を除く): 24544072

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 109, 218, 436, 763, 872, 1526, 3052, 3457, 6104, 6914, 13828, 24199, 27656, 48398, 96796, 193592, 376813, 753626, 1507252, 2637691, 3014504, 5275382, 10550764, 21101528]

約数ペア:

[(1, 21101528), (2, 10550764), (4, 5275382), (7, 3014504), (8, 2637691), (14, 1507252), (28, 753626), (56, 376813), (109, 193592), (218, 96796), (436, 48398), (763, 27656), (872, 24199), (1526, 13828), (3052, 6914), (3457, 6104)]