18643772

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 39395328

約数和(自身を除く): 20751556

約数列:

[1, 2, 4, 7, 14, 28, 31, 47, 62, 94, 124, 188, 217, 329, 434, 457, 658, 868, 914, 1316, 1457, 1828, 2914, 3199, 5828, 6398, 10199, 12796, 14167, 20398, 21479, 28334, 40796, 42958, 56668, 85916, 99169, 150353, 198338, 300706, 396676, 601412, 665849, 1331698, 2663396, 4660943, 9321886, 18643772]

約数ペア:

[(1, 18643772), (2, 9321886), (4, 4660943), (7, 2663396), (14, 1331698), (28, 665849), (31, 601412), (47, 396676), (62, 300706), (94, 198338), (124, 150353), (188, 99169), (217, 85916), (329, 56668), (434, 42958), (457, 40796), (658, 28334), (868, 21479), (914, 20398), (1316, 14167), (1457, 12796), (1828, 10199), (2914, 6398), (3199, 5828)]