21651512

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 42020400

約数和(自身を除く): 20368888

約数列:

[1, 2, 4, 8, 37, 74, 148, 193, 296, 379, 386, 758, 772, 1516, 1544, 3032, 7141, 14023, 14282, 28046, 28564, 56092, 57128, 73147, 112184, 146294, 292588, 585176, 2706439, 5412878, 10825756, 21651512]

約数ペア:

[(1, 21651512), (2, 10825756), (4, 5412878), (8, 2706439), (37, 585176), (74, 292588), (148, 146294), (193, 112184), (296, 73147), (379, 57128), (386, 56092), (758, 28564), (772, 28046), (1516, 14282), (1544, 14023), (3032, 7141)]