19496939

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 25850880

約数和(自身を除く): 6353941

約数列:

[1, 7, 11, 23, 77, 101, 109, 161, 253, 707, 763, 1111, 1199, 1771, 2323, 2507, 7777, 8393, 11009, 16261, 17549, 25553, 27577, 77063, 121099, 178871, 193039, 253207, 847693, 1772449, 2785277, 19496939]

約数ペア:

[(1, 19496939), (7, 2785277), (11, 1772449), (23, 847693), (77, 253207), (101, 193039), (109, 178871), (161, 121099), (253, 77063), (707, 27577), (763, 25553), (1111, 17549), (1199, 16261), (1771, 11009), (2323, 8393), (2507, 7777)]