21679668

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^2\times {\mathrm{173}}^1$

素因数の和:301

約数の個数: 54

約数和(自身を含む): 56068194

約数和(自身を除く): 34388526

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 118, 173, 177, 236, 346, 354, 519, 531, 692, 708, 1038, 1062, 1557, 2076, 2124, 3114, 3481, 6228, 6962, 10207, 10443, 13924, 20414, 20886, 30621, 31329, 40828, 41772, 61242, 62658, 91863, 122484, 125316, 183726, 367452, 602213, 1204426, 1806639, 2408852, 3613278, 5419917, 7226556, 10839834, 21679668]

約数ペア:

[(1, 21679668), (2, 10839834), (3, 7226556), (4, 5419917), (6, 3613278), (9, 2408852), (12, 1806639), (18, 1204426), (36, 602213), (59, 367452), (118, 183726), (173, 125316), (177, 122484), (236, 91863), (346, 62658), (354, 61242), (519, 41772), (531, 40828), (692, 31329), (708, 30621), (1038, 20886), (1062, 20414), (1557, 13924), (2076, 10443), (2124, 10207), (3114, 6962), (3481, 6228)]