15238209

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 24693760

約数和(自身を除く): 9455551

約数列:

[1, 3, 7, 19, 21, 57, 133, 181, 211, 399, 543, 633, 1267, 1477, 3439, 3801, 4009, 4431, 10317, 12027, 24073, 28063, 38191, 72219, 84189, 114573, 267337, 725629, 802011, 2176887, 5079403, 15238209]

約数ペア:

[(1, 15238209), (3, 5079403), (7, 2176887), (19, 802011), (21, 725629), (57, 267337), (133, 114573), (181, 84189), (211, 72219), (399, 38191), (543, 28063), (633, 24073), (1267, 12027), (1477, 10317), (3439, 4431), (3801, 4009)]