26287821

素因数分解:

$3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:743

約数の個数: 40

約数和(自身を含む): 45581184

約数和(自身を除く): 19293363

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 81, 189, 213, 497, 567, 639, 653, 1491, 1917, 1959, 4473, 4571, 5751, 5877, 13419, 13713, 17631, 40257, 41139, 46363, 52893, 123417, 139089, 324541, 370251, 417267, 973623, 1251801, 2920869, 3755403, 8762607, 26287821]

約数ペア:

[(1, 26287821), (3, 8762607), (7, 3755403), (9, 2920869), (21, 1251801), (27, 973623), (63, 417267), (71, 370251), (81, 324541), (189, 139089), (213, 123417), (497, 52893), (567, 46363), (639, 41139), (653, 40257), (1491, 17631), (1917, 13713), (1959, 13419), (4473, 5877), (4571, 5751)]