21765678

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1073

約数の個数: 64

約数和(自身を含む): 52980480

約数和(自身を除く): 31214802

約数列:

[1, 2, 3, 6, 11, 17, 19, 22, 33, 34, 38, 51, 57, 66, 102, 114, 187, 209, 323, 374, 418, 561, 627, 646, 969, 1021, 1122, 1254, 1938, 2042, 3063, 3553, 6126, 7106, 10659, 11231, 17357, 19399, 21318, 22462, 33693, 34714, 38798, 52071, 58197, 67386, 104142, 116394, 190927, 213389, 329783, 381854, 426778, 572781, 640167, 659566, 989349, 1145562, 1280334, 1978698, 3627613, 7255226, 10882839, 21765678]

約数ペア:

[(1, 21765678), (2, 10882839), (3, 7255226), (6, 3627613), (11, 1978698), (17, 1280334), (19, 1145562), (22, 989349), (33, 659566), (34, 640167), (38, 572781), (51, 426778), (57, 381854), (66, 329783), (102, 213389), (114, 190927), (187, 116394), (209, 104142), (323, 67386), (374, 58197), (418, 52071), (561, 38798), (627, 34714), (646, 33693), (969, 22462), (1021, 21318), (1122, 19399), (1254, 17357), (1938, 11231), (2042, 10659), (3063, 7106), (3553, 6126)]