21053646575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{42703}}^1$

素因数の和:42804

約数の個数: 48

約数和(自身を含む): 29579523456

約数和(自身を除く): 8525876881

約数列:

[1, 5, 13, 25, 37, 41, 65, 185, 205, 325, 481, 533, 925, 1025, 1517, 2405, 2665, 7585, 12025, 13325, 19721, 37925, 42703, 98605, 213515, 493025, 555139, 1067575, 1580011, 1750823, 2775695, 7900055, 8754115, 13878475, 20540143, 22760699, 39500275, 43770575, 64780451, 102700715, 113803495, 323902255, 513503575, 569017475, 842145863, 1619511275, 4210729315, 21053646575]

約数ペア:

[(1, 21053646575), (5, 4210729315), (13, 1619511275), (25, 842145863), (37, 569017475), (41, 513503575), (65, 323902255), (185, 113803495), (205, 102700715), (325, 64780451), (481, 43770575), (533, 39500275), (925, 22760699), (1025, 20540143), (1517, 13878475), (2405, 8754115), (2665, 7900055), (7585, 2775695), (12025, 1750823), (13325, 1580011), (19721, 1067575), (37925, 555139), (42703, 493025), (98605, 213515)]