21569230

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{487}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 40195584

約数和(自身を除く): 18626354

約数列:

[1, 2, 5, 10, 43, 86, 103, 206, 215, 430, 487, 515, 974, 1030, 2435, 4429, 4870, 8858, 20941, 22145, 41882, 44290, 50161, 100322, 104705, 209410, 250805, 501610, 2156923, 4313846, 10784615, 21569230]

約数ペア:

[(1, 21569230), (2, 10784615), (5, 4313846), (10, 2156923), (43, 501610), (86, 250805), (103, 209410), (206, 104705), (215, 100322), (430, 50161), (487, 44290), (515, 41882), (974, 22145), (1030, 20941), (2435, 8858), (4429, 4870)]