19947136

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 44847360

約数和(自身を除く): 24900224

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 248, 341, 352, 457, 496, 682, 704, 914, 992, 1364, 1408, 1828, 1984, 2728, 3656, 3968, 5027, 5456, 7312, 10054, 10912, 14167, 14624, 20108, 21824, 28334, 29248, 40216, 43648, 56668, 58496, 80432, 113336, 155837, 160864, 226672, 311674, 321728, 453344, 623348, 643456, 906688, 1246696, 1813376, 2493392, 4986784, 9973568, 19947136]

約数ペア:

[(1, 19947136), (2, 9973568), (4, 4986784), (8, 2493392), (11, 1813376), (16, 1246696), (22, 906688), (31, 643456), (32, 623348), (44, 453344), (62, 321728), (64, 311674), (88, 226672), (124, 160864), (128, 155837), (176, 113336), (248, 80432), (341, 58496), (352, 56668), (457, 43648), (496, 40216), (682, 29248), (704, 28334), (914, 21824), (992, 20108), (1364, 14624), (1408, 14167), (1828, 10912), (1984, 10054), (2728, 7312), (3656, 5456), (3968, 5027)]