21269380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:106

約数の個数: 96

約数和(自身を含む): 53125632

約数和(自身を除く): 31856252

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 47, 55, 68, 85, 94, 110, 121, 170, 187, 188, 220, 235, 242, 340, 374, 470, 484, 517, 605, 748, 799, 935, 940, 1034, 1210, 1331, 1598, 1870, 2057, 2068, 2420, 2585, 2662, 3196, 3740, 3995, 4114, 5170, 5324, 5687, 6655, 7990, 8228, 8789, 10285, 10340, 11374, 13310, 15980, 17578, 20570, 22627, 22748, 26620, 28435, 35156, 41140, 43945, 45254, 56870, 62557, 87890, 90508, 96679, 113135, 113740, 125114, 175780, 193358, 226270, 250228, 312785, 386716, 452540, 483395, 625570, 966790, 1063469, 1251140, 1933580, 2126938, 4253876, 5317345, 10634690, 21269380]

約数ペア:

[(1, 21269380), (2, 10634690), (4, 5317345), (5, 4253876), (10, 2126938), (11, 1933580), (17, 1251140), (20, 1063469), (22, 966790), (34, 625570), (44, 483395), (47, 452540), (55, 386716), (68, 312785), (85, 250228), (94, 226270), (110, 193358), (121, 175780), (170, 125114), (187, 113740), (188, 113135), (220, 96679), (235, 90508), (242, 87890), (340, 62557), (374, 56870), (470, 45254), (484, 43945), (517, 41140), (605, 35156), (748, 28435), (799, 26620), (935, 22748), (940, 22627), (1034, 20570), (1210, 17578), (1331, 15980), (1598, 13310), (1870, 11374), (2057, 10340), (2068, 10285), (2420, 8789), (2585, 8228), (2662, 7990), (3196, 6655), (3740, 5687), (3995, 5324), (4114, 5170)]