21438565668

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{163021}}^1$

素因数の和:163325

約数の個数: 72

約数和(自身を含む): 58568587896

約数和(自身を除く): 37130022228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 281, 468, 562, 843, 1124, 1686, 2529, 3372, 3653, 5058, 7306, 10116, 10959, 14612, 21918, 32877, 43836, 65754, 131508, 163021, 326042, 489063, 652084, 978126, 1467189, 1956252, 2119273, 2934378, 4238546, 5868756, 6357819, 8477092, 12715638, 19073457, 25431276, 38146914, 45808901, 76293828, 91617802, 137426703, 183235604, 274853406, 412280109, 549706812, 595515713, 824560218, 1191031426, 1649120436, 1786547139, 2382062852, 3573094278, 5359641417, 7146188556, 10719282834, 21438565668]

約数ペア:

[(1, 21438565668), (2, 10719282834), (3, 7146188556), (4, 5359641417), (6, 3573094278), (9, 2382062852), (12, 1786547139), (13, 1649120436), (18, 1191031426), (26, 824560218), (36, 595515713), (39, 549706812), (52, 412280109), (78, 274853406), (117, 183235604), (156, 137426703), (234, 91617802), (281, 76293828), (468, 45808901), (562, 38146914), (843, 25431276), (1124, 19073457), (1686, 12715638), (2529, 8477092), (3372, 6357819), (3653, 5868756), (5058, 4238546), (7306, 2934378), (10116, 2119273), (10959, 1956252), (14612, 1467189), (21918, 978126), (32877, 652084), (43836, 489063), (65754, 326042), (131508, 163021)]