21617505

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5279}}^1$

素因数の和:5310

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 24508575

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 5279, 15837, 26395, 36953, 47511, 68627, 79185, 110859, 184765, 205881, 237555, 332577, 343135, 480389, 554295, 617643, 1029405, 1441167, 1662885, 2401945, 3088215, 4323501, 7205835, 21617505]

約数ペア:

[(1, 21617505), (3, 7205835), (5, 4323501), (7, 3088215), (9, 2401945), (13, 1662885), (15, 1441167), (21, 1029405), (35, 617643), (39, 554295), (45, 480389), (63, 343135), (65, 332577), (91, 237555), (105, 205881), (117, 184765), (195, 110859), (273, 79185), (315, 68627), (455, 47511), (585, 36953), (819, 26395), (1365, 15837), (4095, 5279)]