18477616

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 37122624

約数和(自身を除く): 18645008

約数列:

[1, 2, 4, 8, 16, 43, 86, 107, 172, 214, 251, 344, 428, 502, 688, 856, 1004, 1712, 2008, 4016, 4601, 9202, 10793, 18404, 21586, 26857, 36808, 43172, 53714, 73616, 86344, 107428, 172688, 214856, 429712, 1154851, 2309702, 4619404, 9238808, 18477616]

約数ペア:

[(1, 18477616), (2, 9238808), (4, 4619404), (8, 2309702), (16, 1154851), (43, 429712), (86, 214856), (107, 172688), (172, 107428), (214, 86344), (251, 73616), (344, 53714), (428, 43172), (502, 36808), (688, 26857), (856, 21586), (1004, 18404), (1712, 10793), (2008, 9202), (4016, 4601)]