21729202

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 37122048

約数和(自身を除く): 15392846

約数列:

[1, 2, 11, 22, 31, 62, 151, 211, 302, 341, 422, 682, 1661, 2321, 3322, 4642, 4681, 6541, 9362, 13082, 31861, 51491, 63722, 71951, 102982, 143902, 350471, 700942, 987691, 1975382, 10864601, 21729202]

約数ペア:

[(1, 21729202), (2, 10864601), (11, 1975382), (22, 987691), (31, 700942), (62, 350471), (151, 143902), (211, 102982), (302, 71951), (341, 63722), (422, 51491), (682, 31861), (1661, 13082), (2321, 9362), (3322, 6541), (4642, 4681)]