18285421

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 24641280

約数和(自身を除く): 6355859

約数列:

[1, 7, 11, 17, 61, 77, 119, 187, 229, 427, 671, 1037, 1309, 1603, 2519, 3893, 4697, 7259, 11407, 13969, 17633, 27251, 42823, 79849, 97783, 153659, 237473, 299761, 1075613, 1662311, 2612203, 18285421]

約数ペア:

[(1, 18285421), (7, 2612203), (11, 1662311), (17, 1075613), (61, 299761), (77, 237473), (119, 153659), (187, 97783), (229, 79849), (427, 42823), (671, 27251), (1037, 17633), (1309, 13969), (1603, 11407), (2519, 7259), (3893, 4697)]