19932016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1213}}^1$

素因数の和:1313

約数の個数: 40

約数和(自身を含む): 42150080

約数和(自身を除く): 22218064

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 158, 208, 316, 632, 1027, 1213, 1264, 2054, 2426, 4108, 4852, 8216, 9704, 15769, 16432, 19408, 31538, 63076, 95827, 126152, 191654, 252304, 383308, 766616, 1245751, 1533232, 2491502, 4983004, 9966008, 19932016]

約数ペア:

[(1, 19932016), (2, 9966008), (4, 4983004), (8, 2491502), (13, 1533232), (16, 1245751), (26, 766616), (52, 383308), (79, 252304), (104, 191654), (158, 126152), (208, 95827), (316, 63076), (632, 31538), (1027, 19408), (1213, 16432), (1264, 15769), (2054, 9704), (2426, 8216), (4108, 4852)]