20797221218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{62423}}^1$

素因数の和:62722

約数の個数: 32

約数和(自身を含む): 33978631680

約数和(自身を除く): 13181410462

約数列:

[1, 2, 17, 34, 41, 82, 239, 478, 697, 1394, 4063, 8126, 9799, 19598, 62423, 124846, 166583, 333166, 1061191, 2122382, 2559343, 5118686, 14919097, 29838194, 43508831, 87017662, 253624649, 507249298, 611682977, 1223365954, 10398610609, 20797221218]

約数ペア:

[(1, 20797221218), (2, 10398610609), (17, 1223365954), (34, 611682977), (41, 507249298), (82, 253624649), (239, 87017662), (478, 43508831), (697, 29838194), (1394, 14919097), (4063, 5118686), (8126, 2559343), (9799, 2122382), (19598, 1061191), (62423, 333166), (124846, 166583)]