21000366278

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1\times {\mathrm{3083}}^1$

素因数の和:3676

約数の個数: 32

約数和(自身を含む): 32374598400

約数和(自身を除く): 11374232122

約数列:

[1, 2, 53, 106, 179, 358, 359, 718, 3083, 6166, 9487, 18974, 19027, 38054, 64261, 128522, 163399, 326798, 551857, 1103714, 1106797, 2213594, 3405833, 6811666, 29248421, 58496842, 58660241, 117320482, 198116663, 396233326, 10500183139, 21000366278]

約数ペア:

[(1, 21000366278), (2, 10500183139), (53, 396233326), (106, 198116663), (179, 117320482), (358, 58660241), (359, 58496842), (718, 29248421), (3083, 6811666), (6166, 3405833), (9487, 2213594), (18974, 1106797), (19027, 1103714), (38054, 551857), (64261, 326798), (128522, 163399)]