21392790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23003}}^1$

素因数の和:23044

約数の個数: 32

約数和(自身を含む): 53001216

約数和(自身を除く): 31608426

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 23003, 46006, 69009, 115015, 138018, 230030, 345045, 690090, 713093, 1426186, 2139279, 3565465, 4278558, 7130930, 10696395, 21392790]

約数ペア:

[(1, 21392790), (2, 10696395), (3, 7130930), (5, 4278558), (6, 3565465), (10, 2139279), (15, 1426186), (30, 713093), (31, 690090), (62, 345045), (93, 230030), (155, 138018), (186, 115015), (310, 69009), (465, 46006), (930, 23003)]