20904102018

素因数分解:

$2^1\times 3^2\times {\mathrm{239}}^1\times {\mathrm{379}}^1\times {\mathrm{12821}}^1$

素因数の和:13447

約数の個数: 48

約数和(自身を含む): 45605289600

約数和(自身を除く): 24701187582

約数列:

[1, 2, 3, 6, 9, 18, 239, 379, 478, 717, 758, 1137, 1434, 2151, 2274, 3411, 4302, 6822, 12821, 25642, 38463, 76926, 90581, 115389, 181162, 230778, 271743, 543486, 815229, 1630458, 3064219, 4859159, 6128438, 9192657, 9718318, 14577477, 18385314, 27577971, 29154954, 43732431, 55155942, 87464862, 1161339001, 2322678002, 3484017003, 6968034006, 10452051009, 20904102018]

約数ペア:

[(1, 20904102018), (2, 10452051009), (3, 6968034006), (6, 3484017003), (9, 2322678002), (18, 1161339001), (239, 87464862), (379, 55155942), (478, 43732431), (717, 29154954), (758, 27577971), (1137, 18385314), (1434, 14577477), (2151, 9718318), (2274, 9192657), (3411, 6128438), (4302, 4859159), (6822, 3064219), (12821, 1630458), (25642, 815229), (38463, 543486), (76926, 271743), (90581, 230778), (115389, 181162)]