21577725

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2459}}^1$

素因数の和:2491

約数の個数: 48

約数和(自身を含む): 42705600

約数和(自身を除く): 21127875

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2459, 2925, 7377, 8775, 12295, 22131, 31967, 36885, 61475, 66393, 95901, 110655, 159835, 184425, 287703, 331965, 479505, 553275, 799175, 863109, 1438515, 1659825, 2397525, 4315545, 7192575, 21577725]

約数ペア:

[(1, 21577725), (3, 7192575), (5, 4315545), (9, 2397525), (13, 1659825), (15, 1438515), (25, 863109), (27, 799175), (39, 553275), (45, 479505), (65, 331965), (75, 287703), (117, 184425), (135, 159835), (195, 110655), (225, 95901), (325, 66393), (351, 61475), (585, 36885), (675, 31967), (975, 22131), (1755, 12295), (2459, 8775), (2925, 7377)]