21598515

素因数分解:

$3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1304

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 17108685

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139, 417, 695, 1151, 1251, 2085, 3453, 3753, 5755, 6255, 10359, 17265, 18765, 31077, 51795, 155385, 159989, 479967, 799945, 1439901, 2399835, 4319703, 7199505, 21598515]

約数ペア:

[(1, 21598515), (3, 7199505), (5, 4319703), (9, 2399835), (15, 1439901), (27, 799945), (45, 479967), (135, 159989), (139, 155385), (417, 51795), (695, 31077), (1151, 18765), (1251, 17265), (2085, 10359), (3453, 6255), (3753, 5755)]