20736488

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{331}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 19422232

約数列:

[1, 2, 4, 8, 41, 82, 164, 191, 328, 331, 382, 662, 764, 1324, 1528, 2648, 7831, 13571, 15662, 27142, 31324, 54284, 62648, 63221, 108568, 126442, 252884, 505768, 2592061, 5184122, 10368244, 20736488]

約数ペア:

[(1, 20736488), (2, 10368244), (4, 5184122), (8, 2592061), (41, 505768), (82, 252884), (164, 126442), (191, 108568), (328, 63221), (331, 62648), (382, 54284), (662, 31324), (764, 27142), (1324, 15662), (1528, 13571), (2648, 7831)]