21781998

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10169}}^1$

素因数の和:10201

約数の個数: 48

約数和(自身を含む): 57114720

約数和(自身を除く): 35332722

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 63, 102, 119, 126, 153, 238, 306, 357, 714, 1071, 2142, 10169, 20338, 30507, 61014, 71183, 91521, 142366, 172873, 183042, 213549, 345746, 427098, 518619, 640647, 1037238, 1210111, 1281294, 1555857, 2420222, 3111714, 3630333, 7260666, 10890999, 21781998]

約数ペア:

[(1, 21781998), (2, 10890999), (3, 7260666), (6, 3630333), (7, 3111714), (9, 2420222), (14, 1555857), (17, 1281294), (18, 1210111), (21, 1037238), (34, 640647), (42, 518619), (51, 427098), (63, 345746), (102, 213549), (119, 183042), (126, 172873), (153, 142366), (238, 91521), (306, 71183), (357, 61014), (714, 30507), (1071, 20338), (2142, 10169)]