19009808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1487}}^1$

素因数の和:1559

約数の個数: 40

約数和(自身を含む): 39854592

約数和(自身を除く): 20844784

約数列:

[1, 2, 4, 8, 16, 17, 34, 47, 68, 94, 136, 188, 272, 376, 752, 799, 1487, 1598, 2974, 3196, 5948, 6392, 11896, 12784, 23792, 25279, 50558, 69889, 101116, 139778, 202232, 279556, 404464, 559112, 1118224, 1188113, 2376226, 4752452, 9504904, 19009808]

約数ペア:

[(1, 19009808), (2, 9504904), (4, 4752452), (8, 2376226), (16, 1188113), (17, 1118224), (34, 559112), (47, 404464), (68, 279556), (94, 202232), (136, 139778), (188, 101116), (272, 69889), (376, 50558), (752, 25279), (799, 23792), (1487, 12784), (1598, 11896), (2974, 6392), (3196, 5948)]