21059030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 42854400

約数和(自身を除く): 21795370

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 61, 79, 95, 115, 122, 158, 190, 230, 305, 395, 437, 610, 790, 874, 1159, 1403, 1501, 1817, 2185, 2318, 2806, 3002, 3634, 4370, 4819, 5795, 7015, 7505, 9085, 9638, 11590, 14030, 15010, 18170, 24095, 26657, 34523, 48190, 53314, 69046, 91561, 110837, 133285, 172615, 183122, 221674, 266570, 345230, 457805, 554185, 915610, 1108370, 2105903, 4211806, 10529515, 21059030]

約数ペア:

[(1, 21059030), (2, 10529515), (5, 4211806), (10, 2105903), (19, 1108370), (23, 915610), (38, 554185), (46, 457805), (61, 345230), (79, 266570), (95, 221674), (115, 183122), (122, 172615), (158, 133285), (190, 110837), (230, 91561), (305, 69046), (395, 53314), (437, 48190), (610, 34523), (790, 26657), (874, 24095), (1159, 18170), (1403, 15010), (1501, 14030), (1817, 11590), (2185, 9638), (2318, 9085), (2806, 7505), (3002, 7015), (3634, 5795), (4370, 4819)]