21495045

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{911}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 40755456

約数和(自身を除く): 19260411

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 121, 143, 165, 195, 363, 429, 605, 715, 911, 1573, 1815, 2145, 2733, 4555, 4719, 7865, 10021, 11843, 13665, 23595, 30063, 35529, 50105, 59215, 110231, 130273, 150315, 177645, 330693, 390819, 551155, 651365, 1433003, 1653465, 1954095, 4299009, 7165015, 21495045]

約数ペア:

[(1, 21495045), (3, 7165015), (5, 4299009), (11, 1954095), (13, 1653465), (15, 1433003), (33, 651365), (39, 551155), (55, 390819), (65, 330693), (121, 177645), (143, 150315), (165, 130273), (195, 110231), (363, 59215), (429, 50105), (605, 35529), (715, 30063), (911, 23595), (1573, 13665), (1815, 11843), (2145, 10021), (2733, 7865), (4555, 4719)]