21000388684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{541}}^1\times {\mathrm{563}}^1\times {\mathrm{1567}}^1$

素因数の和:2686

約数の個数: 48

約数和(自身を含む): 40262777856

約数和(自身を除く): 19262389172

約数列:

[1, 2, 4, 11, 22, 44, 541, 563, 1082, 1126, 1567, 2164, 2252, 3134, 5951, 6193, 6268, 11902, 12386, 17237, 23804, 24772, 34474, 68948, 304583, 609166, 847747, 882221, 1218332, 1695494, 1764442, 3350413, 3390988, 3528884, 6700826, 9325217, 9704431, 13401652, 18650434, 19408862, 37300868, 38817724, 477281561, 954563122, 1909126244, 5250097171, 10500194342, 21000388684]

約数ペア:

[(1, 21000388684), (2, 10500194342), (4, 5250097171), (11, 1909126244), (22, 954563122), (44, 477281561), (541, 38817724), (563, 37300868), (1082, 19408862), (1126, 18650434), (1567, 13401652), (2164, 9704431), (2252, 9325217), (3134, 6700826), (5951, 3528884), (6193, 3390988), (6268, 3350413), (11902, 1764442), (12386, 1695494), (17237, 1218332), (23804, 882221), (24772, 847747), (34474, 609166), (68948, 304583)]