1851997

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:300

約数の個数: 16

約数和(自身を含む): 2280960

約数和(自身を除く): 428963

約数列:

[1, 7, 17, 79, 119, 197, 553, 1343, 1379, 3349, 9401, 15563, 23443, 108941, 264571, 1851997]

約数ペア:

[(1, 1851997), (7, 264571), (17, 108941), (79, 23443), (119, 15563), (197, 9401), (553, 3349), (1343, 1379)]