21985758

素因数分解:

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

素因数の和:142

約数の個数: 48

約数和(自身を含む): 50424192

約数和(自身を除く): 28438434

約数列:

[1, 2, 3, 6, 9, 18, 31, 41, 62, 82, 93, 123, 186, 246, 279, 369, 558, 738, 961, 1271, 1922, 2542, 2883, 3813, 5766, 7626, 8649, 11439, 17298, 22878, 29791, 39401, 59582, 78802, 89373, 118203, 178746, 236406, 268119, 354609, 536238, 709218, 1221431, 2442862, 3664293, 7328586, 10992879, 21985758]

約数ペア:

[(1, 21985758), (2, 10992879), (3, 7328586), (6, 3664293), (9, 2442862), (18, 1221431), (31, 709218), (41, 536238), (62, 354609), (82, 268119), (93, 236406), (123, 178746), (186, 118203), (246, 89373), (279, 78802), (369, 59582), (558, 39401), (738, 29791), (961, 22878), (1271, 17298), (1922, 11439), (2542, 8649), (2883, 7626), (3813, 5766)]