17821408

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 38619504

約数和(自身を除く): 20798096

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 197, 257, 352, 394, 514, 788, 1028, 1576, 2056, 2167, 2827, 3152, 4112, 4334, 5654, 6304, 8224, 8668, 11308, 17336, 22616, 34672, 45232, 50629, 69344, 90464, 101258, 202516, 405032, 556919, 810064, 1113838, 1620128, 2227676, 4455352, 8910704, 17821408]

約数ペア:

[(1, 17821408), (2, 8910704), (4, 4455352), (8, 2227676), (11, 1620128), (16, 1113838), (22, 810064), (32, 556919), (44, 405032), (88, 202516), (176, 101258), (197, 90464), (257, 69344), (352, 50629), (394, 45232), (514, 34672), (788, 22616), (1028, 17336), (1576, 11308), (2056, 8668), (2167, 8224), (2827, 6304), (3152, 5654), (4112, 4334)]