21059260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2693}}^1$

素因数の和:2742

約数の個数: 48

約数和(自身を含む): 48879936

約数和(自身を除く): 27820676

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2693, 3910, 5386, 7820, 10772, 13465, 26930, 45781, 53860, 61939, 91562, 123878, 183124, 228905, 247756, 309695, 457810, 619390, 915620, 1052963, 1238780, 2105926, 4211852, 5264815, 10529630, 21059260]

約数ペア:

[(1, 21059260), (2, 10529630), (4, 5264815), (5, 4211852), (10, 2105926), (17, 1238780), (20, 1052963), (23, 915620), (34, 619390), (46, 457810), (68, 309695), (85, 247756), (92, 228905), (115, 183124), (170, 123878), (230, 91562), (340, 61939), (391, 53860), (460, 45781), (782, 26930), (1564, 13465), (1955, 10772), (2693, 7820), (3910, 5386)]