397498731

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{653}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 638795808

約数和(自身を除く): 241297077

約数列:

[1, 3, 7, 21, 41, 49, 101, 123, 147, 287, 303, 653, 707, 861, 1959, 2009, 2121, 4141, 4571, 4949, 6027, 12423, 13713, 14847, 26773, 28987, 31997, 65953, 80319, 86961, 95991, 187411, 197859, 202909, 461671, 562233, 608727, 1311877, 1385013, 2704073, 3231697, 3935631, 8112219, 9695091, 18928511, 56785533, 132499577, 397498731]

約数ペア:

[(1, 397498731), (3, 132499577), (7, 56785533), (21, 18928511), (41, 9695091), (49, 8112219), (101, 3935631), (123, 3231697), (147, 2704073), (287, 1385013), (303, 1311877), (653, 608727), (707, 562233), (861, 461671), (1959, 202909), (2009, 197859), (2121, 187411), (4141, 95991), (4571, 86961), (4949, 80319), (6027, 65953), (12423, 31997), (13713, 28987), (14847, 26773)]