21569145

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2087}}^1$

素因数の和:2161

約数の個数: 32

約数和(自身を含む): 37884672

約数和(自身を除く): 16315527

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 2067, 2087, 3445, 6261, 10335, 10435, 27131, 31305, 81393, 110611, 135655, 331833, 406965, 553055, 1437943, 1659165, 4313829, 7189715, 21569145]

約数ペア:

[(1, 21569145), (3, 7189715), (5, 4313829), (13, 1659165), (15, 1437943), (39, 553055), (53, 406965), (65, 331833), (159, 135655), (195, 110611), (265, 81393), (689, 31305), (795, 27131), (2067, 10435), (2087, 10335), (3445, 6261)]