20768156919

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{421}}^1\times {\mathrm{4649}}^1$

素因数の和:5213

約数の個数: 40

約数和(自身を含む): 31341855600

約数和(自身を除く): 10573698681

約数列:

[1, 3, 9, 27, 81, 131, 393, 421, 1179, 1263, 3537, 3789, 4649, 10611, 11367, 13947, 34101, 41841, 55151, 125523, 165453, 376569, 496359, 609019, 1489077, 1827057, 1957229, 4467231, 5481171, 5871687, 16443513, 17615061, 49330539, 52845183, 158535549, 256396999, 769190997, 2307572991, 6922718973, 20768156919]

約数ペア:

[(1, 20768156919), (3, 6922718973), (9, 2307572991), (27, 769190997), (81, 256396999), (131, 158535549), (393, 52845183), (421, 49330539), (1179, 17615061), (1263, 16443513), (3537, 5871687), (3789, 5481171), (4649, 4467231), (10611, 1957229), (11367, 1827057), (13947, 1489077), (34101, 609019), (41841, 496359), (55151, 376569), (125523, 165453)]