21358628

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{7489}}^1$

素因数の和:7547

約数の個数: 24

約数和(自身を含む): 40266240

約数和(自身を除く): 18907612

約数列:

[1, 2, 4, 23, 31, 46, 62, 92, 124, 713, 1426, 2852, 7489, 14978, 29956, 172247, 232159, 344494, 464318, 688988, 928636, 5339657, 10679314, 21358628]

約数ペア:

[(1, 21358628), (2, 10679314), (4, 5339657), (23, 928636), (31, 688988), (46, 464318), (62, 344494), (92, 232159), (124, 172247), (713, 29956), (1426, 14978), (2852, 7489)]