21909228

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 57200640

約数和(自身を除く): 35291412

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 79, 121, 132, 158, 191, 237, 242, 316, 363, 382, 474, 484, 573, 726, 764, 869, 948, 1146, 1452, 1738, 2101, 2292, 2607, 3476, 4202, 5214, 6303, 8404, 9559, 10428, 12606, 15089, 19118, 23111, 25212, 28677, 30178, 38236, 45267, 46222, 57354, 60356, 69333, 90534, 92444, 114708, 138666, 165979, 181068, 277332, 331958, 497937, 663916, 995874, 1825769, 1991748, 3651538, 5477307, 7303076, 10954614, 21909228]

約数ペア:

[(1, 21909228), (2, 10954614), (3, 7303076), (4, 5477307), (6, 3651538), (11, 1991748), (12, 1825769), (22, 995874), (33, 663916), (44, 497937), (66, 331958), (79, 277332), (121, 181068), (132, 165979), (158, 138666), (191, 114708), (237, 92444), (242, 90534), (316, 69333), (363, 60356), (382, 57354), (474, 46222), (484, 45267), (573, 38236), (726, 30178), (764, 28677), (869, 25212), (948, 23111), (1146, 19118), (1452, 15089), (1738, 12606), (2101, 10428), (2292, 9559), (2607, 8404), (3476, 6303), (4202, 5214)]