21241731

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24671}}^1$

素因数の和:24722

約数の個数: 16

約数和(自身を含む): 33159168

約数和(自身を除く): 11917437

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24671, 74013, 172697, 518091, 1011511, 3034533, 7080577, 21241731]

約数ペア:

[(1, 21241731), (3, 7080577), (7, 3034533), (21, 1011511), (41, 518091), (123, 172697), (287, 74013), (861, 24671)]