20155811403

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{136471}}^1$

素因数の和:137035

約数の個数: 32

約数和(自身を含む): 33137585152

約数和(自身を除く): 12981773749

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 541, 1623, 3787, 7033, 11361, 21099, 49231, 136471, 147693, 409413, 955297, 1774123, 2865891, 5322369, 12418861, 37256583, 73830811, 221492433, 516815677, 959800543, 1550447031, 2879401629, 6718603801, 20155811403]

約数ペア:

[(1, 20155811403), (3, 6718603801), (7, 2879401629), (13, 1550447031), (21, 959800543), (39, 516815677), (91, 221492433), (273, 73830811), (541, 37256583), (1623, 12418861), (3787, 5322369), (7033, 2865891), (11361, 1774123), (21099, 955297), (49231, 409413), (136471, 147693)]