19009564

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 20826596

約数列:

[1, 2, 4, 7, 14, 28, 37, 59, 74, 118, 148, 236, 259, 311, 413, 518, 622, 826, 1036, 1244, 1652, 2177, 2183, 4354, 4366, 8708, 8732, 11507, 15281, 18349, 23014, 30562, 36698, 46028, 61124, 73396, 80549, 128443, 161098, 256886, 322196, 513772, 678913, 1357826, 2715652, 4752391, 9504782, 19009564]

約数ペア:

[(1, 19009564), (2, 9504782), (4, 4752391), (7, 2715652), (14, 1357826), (28, 678913), (37, 513772), (59, 322196), (74, 256886), (118, 161098), (148, 128443), (236, 80549), (259, 73396), (311, 61124), (413, 46028), (518, 36698), (622, 30562), (826, 23014), (1036, 18349), (1244, 15281), (1652, 11507), (2177, 8732), (2183, 8708), (4354, 4366)]