21441998

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 35388576

約数和(自身を除く): 13946578

約数列:

[1, 2, 17, 34, 53, 73, 106, 146, 163, 326, 901, 1241, 1802, 2482, 2771, 3869, 5542, 7738, 8639, 11899, 17278, 23798, 65773, 131546, 146863, 202283, 293726, 404566, 630647, 1261294, 10720999, 21441998]

約数ペア:

[(1, 21441998), (2, 10720999), (17, 1261294), (34, 630647), (53, 404566), (73, 293726), (106, 202283), (146, 146863), (163, 131546), (326, 65773), (901, 23798), (1241, 17278), (1802, 11899), (2482, 8639), (2771, 7738), (3869, 5542)]