21386508

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 59684352

約数和(自身を除く): 38297844

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 103, 121, 132, 143, 156, 206, 242, 286, 309, 363, 412, 429, 484, 572, 618, 726, 858, 1133, 1236, 1331, 1339, 1452, 1573, 1716, 2266, 2662, 2678, 3146, 3399, 3993, 4017, 4532, 4719, 5324, 5356, 6292, 6798, 7986, 8034, 9438, 12463, 13596, 14729, 15972, 16068, 17303, 18876, 24926, 29458, 34606, 37389, 44187, 49852, 51909, 58916, 69212, 74778, 88374, 103818, 137093, 149556, 162019, 176748, 207636, 274186, 324038, 411279, 486057, 548372, 648076, 822558, 972114, 1645116, 1782209, 1944228, 3564418, 5346627, 7128836, 10693254, 21386508]

約数ペア:

[(1, 21386508), (2, 10693254), (3, 7128836), (4, 5346627), (6, 3564418), (11, 1944228), (12, 1782209), (13, 1645116), (22, 972114), (26, 822558), (33, 648076), (39, 548372), (44, 486057), (52, 411279), (66, 324038), (78, 274186), (103, 207636), (121, 176748), (132, 162019), (143, 149556), (156, 137093), (206, 103818), (242, 88374), (286, 74778), (309, 69212), (363, 58916), (412, 51909), (429, 49852), (484, 44187), (572, 37389), (618, 34606), (726, 29458), (858, 24926), (1133, 18876), (1236, 17303), (1331, 16068), (1339, 15972), (1452, 14729), (1573, 13596), (1716, 12463), (2266, 9438), (2662, 8034), (2678, 7986), (3146, 6798), (3399, 6292), (3993, 5356), (4017, 5324), (4532, 4719)]