18871184

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:423

約数の個数: 40

約数和(自身を含む): 37997568

約数和(自身を除く): 19126384

約数列:

[1, 2, 4, 8, 16, 37, 74, 127, 148, 251, 254, 296, 502, 508, 592, 1004, 1016, 2008, 2032, 4016, 4699, 9287, 9398, 18574, 18796, 31877, 37148, 37592, 63754, 74296, 75184, 127508, 148592, 255016, 510032, 1179449, 2358898, 4717796, 9435592, 18871184]

約数ペア:

[(1, 18871184), (2, 9435592), (4, 4717796), (8, 2358898), (16, 1179449), (37, 510032), (74, 255016), (127, 148592), (148, 127508), (251, 75184), (254, 74296), (296, 63754), (502, 37592), (508, 37148), (592, 31877), (1004, 18796), (1016, 18574), (2008, 9398), (2032, 9287), (4016, 4699)]