21455632

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 80

約数和(自身を含む): 49175424

約数和(自身を除く): 27719792

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 71, 88, 101, 136, 142, 176, 187, 202, 272, 284, 374, 404, 568, 748, 781, 808, 1111, 1136, 1207, 1496, 1562, 1616, 1717, 2222, 2414, 2992, 3124, 3434, 4444, 4828, 6248, 6868, 7171, 8888, 9656, 12496, 13277, 13736, 14342, 17776, 18887, 19312, 26554, 27472, 28684, 37774, 53108, 57368, 75548, 78881, 106216, 114736, 121907, 151096, 157762, 212432, 243814, 302192, 315524, 487628, 631048, 975256, 1262096, 1340977, 1950512, 2681954, 5363908, 10727816, 21455632]

約数ペア:

[(1, 21455632), (2, 10727816), (4, 5363908), (8, 2681954), (11, 1950512), (16, 1340977), (17, 1262096), (22, 975256), (34, 631048), (44, 487628), (68, 315524), (71, 302192), (88, 243814), (101, 212432), (136, 157762), (142, 151096), (176, 121907), (187, 114736), (202, 106216), (272, 78881), (284, 75548), (374, 57368), (404, 53108), (568, 37774), (748, 28684), (781, 27472), (808, 26554), (1111, 19312), (1136, 18887), (1207, 17776), (1496, 14342), (1562, 13736), (1616, 13277), (1717, 12496), (2222, 9656), (2414, 8888), (2992, 7171), (3124, 6868), (3434, 6248), (4444, 4828)]