2661399

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 36

約数和(自身を含む): 4428424

約数和(自身を除く): 1767025

約数列:

[1, 3, 9, 13, 23, 39, 43, 69, 117, 129, 207, 299, 387, 529, 559, 897, 989, 1587, 1677, 2691, 2967, 4761, 5031, 6877, 8901, 12857, 20631, 22747, 38571, 61893, 68241, 115713, 204723, 295711, 887133, 2661399]

約数ペア:

[(1, 2661399), (3, 887133), (9, 295711), (13, 204723), (23, 115713), (39, 68241), (43, 61893), (69, 38571), (117, 22747), (129, 20631), (207, 12857), (299, 8901), (387, 6877), (529, 5031), (559, 4761), (897, 2967), (989, 2691), (1587, 1677)]