21003090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{700103}}^1$

素因数の和:700113

約数の個数: 16

約数和(自身を含む): 50407488

約数和(自身を除く): 29404398

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 700103, 1400206, 2100309, 3500515, 4200618, 7001030, 10501545, 21003090]

約数ペア:

[(1, 21003090), (2, 10501545), (3, 7001030), (5, 4200618), (6, 3500515), (10, 2100309), (15, 1400206), (30, 700103)]