81610263

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2351}}^1$

素因数の和:2412

約数の個数: 48

約数和(自身を含む): 146764800

約数和(自身を除く): 65154537

約数列:

[1, 3, 7, 9, 19, 21, 29, 57, 63, 87, 133, 171, 203, 261, 399, 551, 609, 1197, 1653, 1827, 2351, 3857, 4959, 7053, 11571, 16457, 21159, 34713, 44669, 49371, 68179, 134007, 148113, 204537, 312683, 402021, 477253, 613611, 938049, 1295401, 1431759, 2814147, 3886203, 4295277, 9067807, 11658609, 27203421, 81610263]

約数ペア:

[(1, 81610263), (3, 27203421), (7, 11658609), (9, 9067807), (19, 4295277), (21, 3886203), (29, 2814147), (57, 1431759), (63, 1295401), (87, 938049), (133, 613611), (171, 477253), (203, 402021), (261, 312683), (399, 204537), (551, 148113), (609, 134007), (1197, 68179), (1653, 49371), (1827, 44669), (2351, 34713), (3857, 21159), (4959, 16457), (7053, 11571)]