208668837

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 305141760

約数和(自身を除く): 96472923

約数列:

[1, 3, 13, 39, 109, 191, 257, 327, 573, 771, 1417, 2483, 3341, 4251, 7449, 10023, 20819, 28013, 49087, 62457, 84039, 147261, 270647, 364169, 638131, 811941, 1092507, 1914393, 5350483, 16051449, 69556279, 208668837]

約数ペア:

[(1, 208668837), (3, 69556279), (13, 16051449), (39, 5350483), (109, 1914393), (191, 1092507), (257, 811941), (327, 638131), (573, 364169), (771, 270647), (1417, 147261), (2483, 84039), (3341, 62457), (4251, 49087), (7449, 28013), (10023, 20819)]