21870230

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 40648608

約数和(自身を除く): 18778378

約数列:

[1, 2, 5, 10, 43, 86, 181, 215, 281, 362, 430, 562, 905, 1405, 1810, 2810, 7783, 12083, 15566, 24166, 38915, 50861, 60415, 77830, 101722, 120830, 254305, 508610, 2187023, 4374046, 10935115, 21870230]

約数ペア:

[(1, 21870230), (2, 10935115), (5, 4374046), (10, 2187023), (43, 508610), (86, 254305), (181, 120830), (215, 101722), (281, 77830), (362, 60415), (430, 50861), (562, 38915), (905, 24166), (1405, 15566), (1810, 12083), (2810, 7783)]