21903500

素因数分解:

$2^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 48589632

約数和(自身を除く): 26686132

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 250, 284, 355, 500, 617, 710, 1234, 1420, 1775, 2468, 3085, 3550, 6170, 7100, 8875, 12340, 15425, 17750, 30850, 35500, 43807, 61700, 77125, 87614, 154250, 175228, 219035, 308500, 438070, 876140, 1095175, 2190350, 4380700, 5475875, 10951750, 21903500]

約数ペア:

[(1, 21903500), (2, 10951750), (4, 5475875), (5, 4380700), (10, 2190350), (20, 1095175), (25, 876140), (50, 438070), (71, 308500), (100, 219035), (125, 175228), (142, 154250), (250, 87614), (284, 77125), (355, 61700), (500, 43807), (617, 35500), (710, 30850), (1234, 17750), (1420, 15425), (1775, 12340), (2468, 8875), (3085, 7100), (3550, 6170)]