21394360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41143}}^1$

素因数の和:41167

約数の個数: 32

約数和(自身を含む): 51841440

約数和(自身を除く): 30447080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41143, 82286, 164572, 205715, 329144, 411430, 534859, 822860, 1069718, 1645720, 2139436, 2674295, 4278872, 5348590, 10697180, 21394360]

約数ペア:

[(1, 21394360), (2, 10697180), (4, 5348590), (5, 4278872), (8, 2674295), (10, 2139436), (13, 1645720), (20, 1069718), (26, 822860), (40, 534859), (52, 411430), (65, 329144), (104, 205715), (130, 164572), (260, 82286), (520, 41143)]