20747817

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{887}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 31584384

約数和(自身を除く): 10836567

約数列:

[1, 3, 9, 23, 69, 113, 207, 339, 887, 1017, 2599, 2661, 7797, 7983, 20401, 23391, 61203, 100231, 183609, 300693, 902079, 2305313, 6915939, 20747817]

約数ペア:

[(1, 20747817), (3, 6915939), (9, 2305313), (23, 902079), (69, 300693), (113, 183609), (207, 100231), (339, 61203), (887, 23391), (1017, 20401), (2599, 7983), (2661, 7797)]