21152970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3853}}^1$

素因数の和:3927

約数の個数: 48

約数和(自身を含む): 55913832

約数和(自身を除く): 34760862

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 61, 90, 122, 183, 305, 366, 549, 610, 915, 1098, 1830, 2745, 3853, 5490, 7706, 11559, 19265, 23118, 34677, 38530, 57795, 69354, 115590, 173385, 235033, 346770, 470066, 705099, 1175165, 1410198, 2115297, 2350330, 3525495, 4230594, 7050990, 10576485, 21152970]

約数ペア:

[(1, 21152970), (2, 10576485), (3, 7050990), (5, 4230594), (6, 3525495), (9, 2350330), (10, 2115297), (15, 1410198), (18, 1175165), (30, 705099), (45, 470066), (61, 346770), (90, 235033), (122, 173385), (183, 115590), (305, 69354), (366, 57795), (549, 38530), (610, 34677), (915, 23118), (1098, 19265), (1830, 11559), (2745, 7706), (3853, 5490)]