20407329

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 31824000

約数和(自身を除く): 11416671

約数列:

[1, 3, 9, 27, 29, 67, 87, 201, 261, 389, 603, 783, 1167, 1809, 1943, 3501, 5829, 10503, 11281, 17487, 26063, 33843, 52461, 78189, 101529, 234567, 304587, 703701, 755827, 2267481, 6802443, 20407329]

約数ペア:

[(1, 20407329), (3, 6802443), (9, 2267481), (27, 755827), (29, 703701), (67, 304587), (87, 234567), (201, 101529), (261, 78189), (389, 52461), (603, 33843), (783, 26063), (1167, 17487), (1809, 11281), (1943, 10503), (3501, 5829)]