21687240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10631}}^1$

素因数の和:10662

約数の個数: 64

約数和(自身を含む): 68895360

約数和(自身を除く): 47208120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10631, 21262, 31893, 42524, 53155, 63786, 85048, 106310, 127572, 159465, 180727, 212620, 255144, 318930, 361454, 425240, 542181, 637860, 722908, 903635, 1084362, 1275720, 1445816, 1807270, 2168724, 2710905, 3614540, 4337448, 5421810, 7229080, 10843620, 21687240]

約数ペア:

[(1, 21687240), (2, 10843620), (3, 7229080), (4, 5421810), (5, 4337448), (6, 3614540), (8, 2710905), (10, 2168724), (12, 1807270), (15, 1445816), (17, 1275720), (20, 1084362), (24, 903635), (30, 722908), (34, 637860), (40, 542181), (51, 425240), (60, 361454), (68, 318930), (85, 255144), (102, 212620), (120, 180727), (136, 159465), (170, 127572), (204, 106310), (255, 85048), (340, 63786), (408, 53155), (510, 42524), (680, 31893), (1020, 21262), (2040, 10631)]