21858307796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4723057}}^1$

素因数の和:4723163

約数の個数: 24

約数和(自身を含む): 41657371560

約数和(自身を除く): 19799063764

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4628, 4723057, 9446114, 18892228, 61399741, 122799482, 245598964, 420352073, 840704146, 1681408292, 5464576949, 10929153898, 21858307796]

約数ペア:

[(1, 21858307796), (2, 10929153898), (4, 5464576949), (13, 1681408292), (26, 840704146), (52, 420352073), (89, 245598964), (178, 122799482), (356, 61399741), (1157, 18892228), (2314, 9446114), (4628, 4723057)]