21695264

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2099}}^1$

素因数の和:2145

約数の個数: 48

約数和(自身を含む): 47628000

約数和(自身を除く): 25932736

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 2099, 2584, 4198, 5168, 8396, 10336, 16792, 33584, 35683, 39881, 67168, 71366, 79762, 142732, 159524, 285464, 319048, 570928, 638096, 677977, 1141856, 1276192, 1355954, 2711908, 5423816, 10847632, 21695264]

約数ペア:

[(1, 21695264), (2, 10847632), (4, 5423816), (8, 2711908), (16, 1355954), (17, 1276192), (19, 1141856), (32, 677977), (34, 638096), (38, 570928), (68, 319048), (76, 285464), (136, 159524), (152, 142732), (272, 79762), (304, 71366), (323, 67168), (544, 39881), (608, 35683), (646, 33584), (1292, 16792), (2099, 10336), (2584, 8396), (4198, 5168)]