21559072

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{601}}^1$

素因数の和:689

約数の個数: 48

約数和(自身を含む): 45511200

約数和(自身を除く): 23952128

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 601, 608, 944, 1121, 1202, 1888, 2242, 2404, 4484, 4808, 8968, 9616, 11419, 17936, 19232, 22838, 35459, 35872, 45676, 70918, 91352, 141836, 182704, 283672, 365408, 567344, 673721, 1134688, 1347442, 2694884, 5389768, 10779536, 21559072]

約数ペア:

[(1, 21559072), (2, 10779536), (4, 5389768), (8, 2694884), (16, 1347442), (19, 1134688), (32, 673721), (38, 567344), (59, 365408), (76, 283672), (118, 182704), (152, 141836), (236, 91352), (304, 70918), (472, 45676), (601, 35872), (608, 35459), (944, 22838), (1121, 19232), (1202, 17936), (1888, 11419), (2242, 9616), (2404, 8968), (4484, 4808)]