19712432

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:333

約数の個数: 40

約数和(自身を含む): 39283200

約数和(自身を除く): 19570768

約数列:

[1, 2, 4, 8, 16, 89, 109, 127, 178, 218, 254, 356, 436, 508, 712, 872, 1016, 1424, 1744, 2032, 9701, 11303, 13843, 19402, 22606, 27686, 38804, 45212, 55372, 77608, 90424, 110744, 155216, 180848, 221488, 1232027, 2464054, 4928108, 9856216, 19712432]

約数ペア:

[(1, 19712432), (2, 9856216), (4, 4928108), (8, 2464054), (16, 1232027), (89, 221488), (109, 180848), (127, 155216), (178, 110744), (218, 90424), (254, 77608), (356, 55372), (436, 45212), (508, 38804), (712, 27686), (872, 22606), (1016, 19402), (1424, 13843), (1744, 11303), (2032, 9701)]