18661616

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1087}}^1$

素因数の和:1161

約数の個数: 40

約数和(自身を含む): 38449920

約数和(自身を除く): 19788304

約数列:

[1, 2, 4, 8, 16, 29, 37, 58, 74, 116, 148, 232, 296, 464, 592, 1073, 1087, 2146, 2174, 4292, 4348, 8584, 8696, 17168, 17392, 31523, 40219, 63046, 80438, 126092, 160876, 252184, 321752, 504368, 643504, 1166351, 2332702, 4665404, 9330808, 18661616]

約数ペア:

[(1, 18661616), (2, 9330808), (4, 4665404), (8, 2332702), (16, 1166351), (29, 643504), (37, 504368), (58, 321752), (74, 252184), (116, 160876), (148, 126092), (232, 80438), (296, 63046), (464, 40219), (592, 31523), (1073, 17392), (1087, 17168), (2146, 8696), (2174, 8584), (4292, 4348)]