19720778886

素因数分解:

$2^1\times 3^4\times {\mathrm{571}}^1\times {\mathrm{213193}}^1$

素因数の和:213778

約数の個数: 40

約数和(自身を含む): 44266749384

約数和(自身を除く): 24545970498

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 571, 1142, 1713, 3426, 5139, 10278, 15417, 30834, 46251, 92502, 213193, 426386, 639579, 1279158, 1918737, 3837474, 5756211, 11512422, 17268633, 34537266, 121733203, 243466406, 365199609, 730399218, 1095598827, 2191197654, 3286796481, 6573592962, 9860389443, 19720778886]

約数ペア:

[(1, 19720778886), (2, 9860389443), (3, 6573592962), (6, 3286796481), (9, 2191197654), (18, 1095598827), (27, 730399218), (54, 365199609), (81, 243466406), (162, 121733203), (571, 34537266), (1142, 17268633), (1713, 11512422), (3426, 5756211), (5139, 3837474), (10278, 1918737), (15417, 1279158), (30834, 639579), (46251, 426386), (92502, 213193)]