21583179

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 40

約数和(自身を含む): 33866448

約数和(自身を除く): 12283269

約数列:

[1, 3, 9, 27, 41, 67, 81, 97, 123, 201, 291, 369, 603, 873, 1107, 1809, 2619, 2747, 3321, 3977, 5427, 6499, 7857, 8241, 11931, 19497, 24723, 35793, 58491, 74169, 107379, 175473, 222507, 266459, 322137, 526419, 799377, 2398131, 7194393, 21583179]

約数ペア:

[(1, 21583179), (3, 7194393), (9, 2398131), (27, 799377), (41, 526419), (67, 322137), (81, 266459), (97, 222507), (123, 175473), (201, 107379), (291, 74169), (369, 58491), (603, 35793), (873, 24723), (1107, 19497), (1809, 11931), (2619, 8241), (2747, 7857), (3321, 6499), (3977, 5427)]