20211488

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{857}}^1$

素因数の和:945

約数の個数: 48

約数和(自身を含む): 44108064

約数和(自身を除く): 23896576

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 67, 88, 134, 176, 268, 352, 536, 737, 857, 1072, 1474, 1714, 2144, 2948, 3428, 5896, 6856, 9427, 11792, 13712, 18854, 23584, 27424, 37708, 57419, 75416, 114838, 150832, 229676, 301664, 459352, 631609, 918704, 1263218, 1837408, 2526436, 5052872, 10105744, 20211488]

約数ペア:

[(1, 20211488), (2, 10105744), (4, 5052872), (8, 2526436), (11, 1837408), (16, 1263218), (22, 918704), (32, 631609), (44, 459352), (67, 301664), (88, 229676), (134, 150832), (176, 114838), (268, 75416), (352, 57419), (536, 37708), (737, 27424), (857, 23584), (1072, 18854), (1474, 13712), (1714, 11792), (2144, 9427), (2948, 6856), (3428, 5896)]