21631149

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:170

約数の個数: 36

約数和(自身を含む): 33615036

約数和(自身を除く): 11983887

約数列:

[1, 3, 9, 31, 41, 61, 93, 123, 183, 279, 369, 549, 961, 1271, 1891, 2501, 2883, 3813, 5673, 7503, 8649, 11439, 17019, 22509, 39401, 58621, 77531, 118203, 175863, 232593, 354609, 527589, 697779, 2403461, 7210383, 21631149]

約数ペア:

[(1, 21631149), (3, 7210383), (9, 2403461), (31, 697779), (41, 527589), (61, 354609), (93, 232593), (123, 175863), (183, 118203), (279, 77531), (369, 58621), (549, 39401), (961, 22509), (1271, 17019), (1891, 11439), (2501, 8649), (2883, 7503), (3813, 5673)]