18747568

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2293}}^1$

素因数の和:2381

約数の個数: 40

約数和(自身を含む): 42099488

約数和(自身を除く): 23351920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 2293, 4088, 4586, 8176, 9172, 16051, 18344, 32102, 36688, 64204, 128408, 167389, 256816, 334778, 669556, 1171723, 1339112, 2343446, 2678224, 4686892, 9373784, 18747568]

約数ペア:

[(1, 18747568), (2, 9373784), (4, 4686892), (7, 2678224), (8, 2343446), (14, 1339112), (16, 1171723), (28, 669556), (56, 334778), (73, 256816), (112, 167389), (146, 128408), (292, 64204), (511, 36688), (584, 32102), (1022, 18344), (1168, 16051), (2044, 9172), (2293, 8176), (4088, 4586)]