21437835

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^2\times {\mathrm{229}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 34891920

約数和(自身を除く): 13454085

約数列:

[1, 3, 5, 15, 79, 229, 237, 395, 687, 1145, 1185, 3435, 6241, 18091, 18723, 31205, 54273, 90455, 93615, 271365, 1429189, 4287567, 7145945, 21437835]

約数ペア:

[(1, 21437835), (3, 7145945), (5, 4287567), (15, 1429189), (79, 271365), (229, 93615), (237, 90455), (395, 54273), (687, 31205), (1145, 18723), (1185, 18091), (3435, 6241)]