19969988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2069}}^1$

素因数の和:2219

約数の個数: 24

約数和(自身を含む): 37094400

約数和(自身を除く): 17124412

約数列:

[1, 2, 4, 19, 38, 76, 127, 254, 508, 2069, 2413, 4138, 4826, 8276, 9652, 39311, 78622, 157244, 262763, 525526, 1051052, 4992497, 9984994, 19969988]

約数ペア:

[(1, 19969988), (2, 9984994), (4, 4992497), (19, 1051052), (38, 525526), (76, 262763), (127, 157244), (254, 78622), (508, 39311), (2069, 9652), (2413, 8276), (4138, 4826)]