18991119

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 29942784

約数和(自身を除く): 10951665

約数列:

[1, 3, 7, 21, 53, 113, 151, 159, 339, 371, 453, 791, 1057, 1113, 2373, 3171, 5989, 8003, 17063, 17967, 24009, 41923, 51189, 56021, 119441, 125769, 168063, 358323, 904339, 2713017, 6330373, 18991119]

約数ペア:

[(1, 18991119), (3, 6330373), (7, 2713017), (21, 904339), (53, 358323), (113, 168063), (151, 125769), (159, 119441), (339, 56021), (371, 51189), (453, 41923), (791, 24009), (1057, 17967), (1113, 17063), (2373, 8003), (3171, 5989)]