20081978787

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{55903}}^1$

素因数の和:56131

約数の個数: 32

約数和(自身を含む): 29503000576

約数和(自身を除く): 9421021789

約数列:

[1, 3, 13, 39, 61, 151, 183, 453, 793, 1963, 2379, 5889, 9211, 27633, 55903, 119743, 167709, 359229, 726739, 2180217, 3410083, 8441353, 10230249, 25324059, 44331079, 109737589, 132993237, 329212767, 514922533, 1544767599, 6693992929, 20081978787]

約数ペア:

[(1, 20081978787), (3, 6693992929), (13, 1544767599), (39, 514922533), (61, 329212767), (151, 132993237), (183, 109737589), (453, 44331079), (793, 25324059), (1963, 10230249), (2379, 8441353), (5889, 3410083), (9211, 2180217), (27633, 726739), (55903, 359229), (119743, 167709)]