18731636

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 41580672

約数和(自身を除く): 22849036

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 61, 77, 122, 154, 244, 308, 427, 671, 854, 997, 1342, 1708, 1994, 2684, 3988, 4697, 6979, 9394, 10967, 13958, 18788, 21934, 27916, 43868, 60817, 76769, 121634, 153538, 243268, 307076, 425719, 668987, 851438, 1337974, 1702876, 2675948, 4682909, 9365818, 18731636]

約数ペア:

[(1, 18731636), (2, 9365818), (4, 4682909), (7, 2675948), (11, 1702876), (14, 1337974), (22, 851438), (28, 668987), (44, 425719), (61, 307076), (77, 243268), (122, 153538), (154, 121634), (244, 76769), (308, 60817), (427, 43868), (671, 27916), (854, 21934), (997, 18788), (1342, 13958), (1708, 10967), (1994, 9394), (2684, 6979), (3988, 4697)]