19732768

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1001

約数の個数: 48

約数和(自身を含む): 43122240

約数和(自身を除く): 23389472

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 88, 122, 176, 244, 352, 488, 671, 919, 976, 1342, 1838, 1952, 2684, 3676, 5368, 7352, 10109, 10736, 14704, 20218, 21472, 29408, 40436, 56059, 80872, 112118, 161744, 224236, 323488, 448472, 616649, 896944, 1233298, 1793888, 2466596, 4933192, 9866384, 19732768]

約数ペア:

[(1, 19732768), (2, 9866384), (4, 4933192), (8, 2466596), (11, 1793888), (16, 1233298), (22, 896944), (32, 616649), (44, 448472), (61, 323488), (88, 224236), (122, 161744), (176, 112118), (244, 80872), (352, 56059), (488, 40436), (671, 29408), (919, 21472), (976, 20218), (1342, 14704), (1838, 10736), (1952, 10109), (2684, 7352), (3676, 5368)]