17938647

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 26732160

約数和(自身を除く): 8793513

約数列:

[1, 3, 9, 67, 71, 201, 213, 419, 603, 639, 1257, 3771, 4757, 14271, 28073, 29749, 42813, 84219, 89247, 252657, 267741, 1993183, 5979549, 17938647]

約数ペア:

[(1, 17938647), (3, 5979549), (9, 1993183), (67, 267741), (71, 252657), (201, 89247), (213, 84219), (419, 42813), (603, 29749), (639, 28073), (1257, 14271), (3771, 4757)]