21158869860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117549277}}^1$

素因数の和:117549292

約数の個数: 36

約数和(自身を含む): 64181905788

約数和(自身を除く): 43023035928

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117549277, 235098554, 352647831, 470197108, 587746385, 705295662, 1057943493, 1175492770, 1410591324, 1763239155, 2115886986, 2350985540, 3526478310, 4231773972, 5289717465, 7052956620, 10579434930, 21158869860]

約数ペア:

[(1, 21158869860), (2, 10579434930), (3, 7052956620), (4, 5289717465), (5, 4231773972), (6, 3526478310), (9, 2350985540), (10, 2115886986), (12, 1763239155), (15, 1410591324), (18, 1175492770), (20, 1057943493), (30, 705295662), (36, 587746385), (45, 470197108), (60, 352647831), (90, 235098554), (180, 117549277)]