20997804968

素因数分解:

$2^3\times 7^2\times {\mathrm{9479}}^1\times {\mathrm{5651}}^1$

素因数の和:15150

約数の個数: 48

約数和(自身を含む): 45811720800

約数和(自身を除く): 24813915832

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 5651, 9479, 11302, 18958, 22604, 37916, 39557, 45208, 66353, 75832, 79114, 132706, 158228, 265412, 276899, 316456, 464471, 530824, 553798, 928942, 1107596, 1857884, 2215192, 3715768, 53565829, 107131658, 214263316, 374960803, 428526632, 749921606, 1499843212, 2624725621, 2999686424, 5249451242, 10498902484, 20997804968]

約数ペア:

[(1, 20997804968), (2, 10498902484), (4, 5249451242), (7, 2999686424), (8, 2624725621), (14, 1499843212), (28, 749921606), (49, 428526632), (56, 374960803), (98, 214263316), (196, 107131658), (392, 53565829), (5651, 3715768), (9479, 2215192), (11302, 1857884), (18958, 1107596), (22604, 928942), (37916, 553798), (39557, 530824), (45208, 464471), (66353, 316456), (75832, 276899), (79114, 265412), (132706, 158228)]