18975472

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:677

約数の個数: 40

約数和(自身を含む): 38584832

約数和(自身を除く): 19609360

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 124, 134, 248, 268, 496, 536, 571, 1072, 1142, 2077, 2284, 4154, 4568, 8308, 9136, 16616, 17701, 33232, 35402, 38257, 70804, 76514, 141608, 153028, 283216, 306056, 612112, 1185967, 2371934, 4743868, 9487736, 18975472]

約数ペア:

[(1, 18975472), (2, 9487736), (4, 4743868), (8, 2371934), (16, 1185967), (31, 612112), (62, 306056), (67, 283216), (124, 153028), (134, 141608), (248, 76514), (268, 70804), (496, 38257), (536, 35402), (571, 33232), (1072, 17701), (1142, 16616), (2077, 9136), (2284, 8308), (4154, 4568)]