21253610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 46835712

約数和(自身を除く): 25582102

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 43, 46, 70, 86, 115, 161, 215, 230, 301, 307, 322, 430, 602, 614, 805, 989, 1505, 1535, 1610, 1978, 2149, 3010, 3070, 4298, 4945, 6923, 7061, 9890, 10745, 13201, 13846, 14122, 21490, 26402, 34615, 35305, 49427, 66005, 69230, 70610, 92407, 98854, 132010, 184814, 247135, 303623, 462035, 494270, 607246, 924070, 1518115, 2125361, 3036230, 4250722, 10626805, 21253610]

約数ペア:

[(1, 21253610), (2, 10626805), (5, 4250722), (7, 3036230), (10, 2125361), (14, 1518115), (23, 924070), (35, 607246), (43, 494270), (46, 462035), (70, 303623), (86, 247135), (115, 184814), (161, 132010), (215, 98854), (230, 92407), (301, 70610), (307, 69230), (322, 66005), (430, 49427), (602, 35305), (614, 34615), (805, 26402), (989, 21490), (1505, 14122), (1535, 13846), (1610, 13201), (1978, 10745), (2149, 9890), (3010, 7061), (3070, 6923), (4298, 4945)]