17981996

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{229}}^1\times {\mathrm{293}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 32187120

約数和(自身を除く): 14205124

約数列:

[1, 2, 4, 67, 134, 229, 268, 293, 458, 586, 916, 1172, 15343, 19631, 30686, 39262, 61372, 67097, 78524, 134194, 268388, 4495499, 8990998, 17981996]

約数ペア:

[(1, 17981996), (2, 8990998), (4, 4495499), (67, 268388), (134, 134194), (229, 78524), (268, 67097), (293, 61372), (458, 39262), (586, 30686), (916, 19631), (1172, 15343)]