19947488

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{929}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 43590960

約数和(自身を除く): 23643472

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 88, 122, 176, 244, 352, 488, 671, 929, 976, 1342, 1858, 1952, 2684, 3716, 5368, 7432, 10219, 10736, 14864, 20438, 21472, 29728, 40876, 56669, 81752, 113338, 163504, 226676, 327008, 453352, 623359, 906704, 1246718, 1813408, 2493436, 4986872, 9973744, 19947488]

約数ペア:

[(1, 19947488), (2, 9973744), (4, 4986872), (8, 2493436), (11, 1813408), (16, 1246718), (22, 906704), (32, 623359), (44, 453352), (61, 327008), (88, 226676), (122, 163504), (176, 113338), (244, 81752), (352, 56669), (488, 40876), (671, 29728), (929, 21472), (976, 20438), (1342, 14864), (1858, 10736), (1952, 10219), (2684, 7432), (3716, 5368)]