18491011

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 24634368

約数和(自身を除く): 6143357

約数列:

[1, 7, 11, 23, 53, 77, 161, 197, 253, 371, 583, 1219, 1379, 1771, 2167, 4081, 4531, 8533, 10441, 13409, 15169, 31717, 49841, 73087, 93863, 114851, 240143, 348887, 803957, 1681001, 2641573, 18491011]

約数ペア:

[(1, 18491011), (7, 2641573), (11, 1681001), (23, 803957), (53, 348887), (77, 240143), (161, 114851), (197, 93863), (253, 73087), (371, 49841), (583, 31717), (1219, 15169), (1379, 13409), (1771, 10441), (2167, 8533), (4081, 4531)]