21902452

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{59}}^2$

素因数の和:157

約数の個数: 54

約数和(自身を含む): 46153394

約数和(自身を除く): 24250942

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 59, 118, 121, 143, 236, 242, 286, 484, 572, 649, 767, 1298, 1534, 1573, 2596, 3068, 3146, 3481, 6292, 6962, 7139, 8437, 13924, 14278, 16874, 28556, 33748, 38291, 45253, 76582, 90506, 92807, 153164, 181012, 185614, 371228, 421201, 497783, 842402, 995566, 1684804, 1991132, 5475613, 10951226, 21902452]

約数ペア:

[(1, 21902452), (2, 10951226), (4, 5475613), (11, 1991132), (13, 1684804), (22, 995566), (26, 842402), (44, 497783), (52, 421201), (59, 371228), (118, 185614), (121, 181012), (143, 153164), (236, 92807), (242, 90506), (286, 76582), (484, 45253), (572, 38291), (649, 33748), (767, 28556), (1298, 16874), (1534, 14278), (1573, 13924), (2596, 8437), (3068, 7139), (3146, 6962), (3481, 6292)]