21011445

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{733}}^1$

素因数の和:771

約数の個数: 72

約数和(自身を含む): 45687096

約数和(自身を除く): 24675651

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 315, 441, 455, 585, 637, 733, 735, 819, 1365, 1911, 2199, 2205, 3185, 3665, 4095, 5131, 5733, 6597, 9529, 9555, 10995, 15393, 25655, 28587, 28665, 32985, 35917, 46179, 47645, 66703, 76965, 85761, 107751, 142935, 179585, 200109, 230895, 323253, 333515, 428805, 466921, 538755, 600327, 1000545, 1400763, 1616265, 2334605, 3001635, 4202289, 7003815, 21011445]

約数ペア:

[(1, 21011445), (3, 7003815), (5, 4202289), (7, 3001635), (9, 2334605), (13, 1616265), (15, 1400763), (21, 1000545), (35, 600327), (39, 538755), (45, 466921), (49, 428805), (63, 333515), (65, 323253), (91, 230895), (105, 200109), (117, 179585), (147, 142935), (195, 107751), (245, 85761), (273, 76965), (315, 66703), (441, 47645), (455, 46179), (585, 35917), (637, 32985), (733, 28665), (735, 28587), (819, 25655), (1365, 15393), (1911, 10995), (2199, 9555), (2205, 9529), (3185, 6597), (3665, 5733), (4095, 5131)]