19715430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 54448128

約数和(自身を除く): 34732698

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 223, 421, 446, 669, 842, 1115, 1263, 1338, 1561, 2105, 2230, 2526, 2947, 3122, 3345, 4210, 4683, 5894, 6315, 6690, 7805, 8841, 9366, 12630, 14735, 15610, 17682, 23415, 29470, 44205, 46830, 88410, 93883, 187766, 281649, 469415, 563298, 657181, 938830, 1314362, 1408245, 1971543, 2816490, 3285905, 3943086, 6571810, 9857715, 19715430]

約数ペア:

[(1, 19715430), (2, 9857715), (3, 6571810), (5, 3943086), (6, 3285905), (7, 2816490), (10, 1971543), (14, 1408245), (15, 1314362), (21, 938830), (30, 657181), (35, 563298), (42, 469415), (70, 281649), (105, 187766), (210, 93883), (223, 88410), (421, 46830), (446, 44205), (669, 29470), (842, 23415), (1115, 17682), (1263, 15610), (1338, 14735), (1561, 12630), (2105, 9366), (2230, 8841), (2526, 7805), (2947, 6690), (3122, 6315), (3345, 5894), (4210, 4683)]