212543331

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10111}}^1$

素因数の和:10152

約数の個数: 48

約数和(自身を含む): 387330048

約数和(自身を除く): 174786717

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 231, 273, 429, 539, 637, 1001, 1617, 1911, 3003, 7007, 10111, 21021, 30333, 70777, 111221, 131443, 212331, 333663, 394329, 495439, 778547, 920101, 1445873, 1486317, 2335641, 2760303, 4337619, 5449829, 6440707, 10121111, 16349487, 19322121, 30363333, 70847777, 212543331]

約数ペア:

[(1, 212543331), (3, 70847777), (7, 30363333), (11, 19322121), (13, 16349487), (21, 10121111), (33, 6440707), (39, 5449829), (49, 4337619), (77, 2760303), (91, 2335641), (143, 1486317), (147, 1445873), (231, 920101), (273, 778547), (429, 495439), (539, 394329), (637, 333663), (1001, 212331), (1617, 131443), (1911, 111221), (3003, 70777), (7007, 30333), (10111, 21021)]