21375306

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{113}}^2$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 49470720

約数和(自身を除く): 28095414

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 113, 186, 226, 279, 339, 558, 678, 837, 1017, 1674, 2034, 3051, 3503, 6102, 7006, 10509, 12769, 21018, 25538, 31527, 38307, 63054, 76614, 94581, 114921, 189162, 229842, 344763, 395839, 689526, 791678, 1187517, 2375034, 3562551, 7125102, 10687653, 21375306]

約数ペア:

[(1, 21375306), (2, 10687653), (3, 7125102), (6, 3562551), (9, 2375034), (18, 1187517), (27, 791678), (31, 689526), (54, 395839), (62, 344763), (93, 229842), (113, 189162), (186, 114921), (226, 94581), (279, 76614), (339, 63054), (558, 38307), (678, 31527), (837, 25538), (1017, 21018), (1674, 12769), (2034, 10509), (3051, 7006), (3503, 6102)]