21267870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2371}}^1$

素因数の和:2417

約数の個数: 64

約数和(自身を含む): 57383424

約数和(自身を除く): 36115554

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2371, 2990, 4485, 4742, 7113, 8970, 11855, 14226, 23710, 30823, 35565, 54533, 61646, 71130, 92469, 109066, 154115, 163599, 184938, 272665, 308230, 327198, 462345, 545330, 708929, 817995, 924690, 1417858, 1635990, 2126787, 3544645, 4253574, 7089290, 10633935, 21267870]

約数ペア:

[(1, 21267870), (2, 10633935), (3, 7089290), (5, 4253574), (6, 3544645), (10, 2126787), (13, 1635990), (15, 1417858), (23, 924690), (26, 817995), (30, 708929), (39, 545330), (46, 462345), (65, 327198), (69, 308230), (78, 272665), (115, 184938), (130, 163599), (138, 154115), (195, 109066), (230, 92469), (299, 71130), (345, 61646), (390, 54533), (598, 35565), (690, 30823), (897, 23710), (1495, 14226), (1794, 11855), (2371, 8970), (2990, 7113), (4485, 4742)]