21053718

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9829}}^1$

素因数の和:9861

約数の個数: 48

約数和(自身を含む): 55205280

約数和(自身を除く): 34151562

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, 9829, 19658, 29487, 58974, 68803, 88461, 137606, 167093, 176922, 206409, 334186, 412818, 501279, 619227, 1002558, 1169651, 1238454, 1503837, 2339302, 3007674, 3508953, 7017906, 10526859, 21053718]

約数ペア:

[(1, 21053718), (2, 10526859), (3, 7017906), (6, 3508953), (7, 3007674), (9, 2339302), (14, 1503837), (17, 1238454), (18, 1169651), (21, 1002558), (34, 619227), (42, 501279), (51, 412818), (63, 334186), (102, 206409), (119, 176922), (126, 167093), (153, 137606), (238, 88461), (306, 68803), (357, 58974), (714, 29487), (1071, 19658), (2142, 9829)]