21777976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4057}}^1$

素因数の和:4135

約数の個数: 32

約数和(自身を含む): 45287280

約数和(自身を除く): 23509304

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 4057, 5368, 8114, 16228, 32456, 44627, 89254, 178508, 247477, 357016, 494954, 989908, 1979816, 2722247, 5444494, 10888988, 21777976]

約数ペア:

[(1, 21777976), (2, 10888988), (4, 5444494), (8, 2722247), (11, 1979816), (22, 989908), (44, 494954), (61, 357016), (88, 247477), (122, 178508), (244, 89254), (488, 44627), (671, 32456), (1342, 16228), (2684, 8114), (4057, 5368)]