21172920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2417}}^1$

素因数の和:2504

約数の個数: 64

約数和(自身を含む): 64415520

約数和(自身を除く): 43242600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2417, 2920, 4380, 4834, 7251, 8760, 9668, 12085, 14502, 19336, 24170, 29004, 36255, 48340, 58008, 72510, 96680, 145020, 176441, 290040, 352882, 529323, 705764, 882205, 1058646, 1411528, 1764410, 2117292, 2646615, 3528820, 4234584, 5293230, 7057640, 10586460, 21172920]

約数ペア:

[(1, 21172920), (2, 10586460), (3, 7057640), (4, 5293230), (5, 4234584), (6, 3528820), (8, 2646615), (10, 2117292), (12, 1764410), (15, 1411528), (20, 1058646), (24, 882205), (30, 705764), (40, 529323), (60, 352882), (73, 290040), (120, 176441), (146, 145020), (219, 96680), (292, 72510), (365, 58008), (438, 48340), (584, 36255), (730, 29004), (876, 24170), (1095, 19336), (1460, 14502), (1752, 12085), (2190, 9668), (2417, 8760), (2920, 7251), (4380, 4834)]