198727581

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{1217}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 294658560

約数和(自身を除く): 95930979

約数列:

[1, 3, 13, 39, 53, 79, 159, 237, 689, 1027, 1217, 2067, 3081, 3651, 4187, 12561, 15821, 47463, 54431, 64501, 96143, 163293, 193503, 288429, 838513, 1249859, 2515539, 3749577, 5095579, 15286737, 66242527, 198727581]

約数ペア:

[(1, 198727581), (3, 66242527), (13, 15286737), (39, 5095579), (53, 3749577), (79, 2515539), (159, 1249859), (237, 838513), (689, 288429), (1027, 193503), (1217, 163293), (2067, 96143), (3081, 64501), (3651, 54431), (4187, 47463), (12561, 15821)]