21625940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1367}}^1$

素因数の和:1496

約数の個数: 48

約数和(自身を含む): 52399872

約数和(自身を除く): 30773932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1367, 1582, 2260, 2734, 3164, 3955, 5468, 6835, 7910, 9569, 13670, 15820, 19138, 27340, 38276, 47845, 95690, 154471, 191380, 308942, 617884, 772355, 1081297, 1544710, 2162594, 3089420, 4325188, 5406485, 10812970, 21625940]

約数ペア:

[(1, 21625940), (2, 10812970), (4, 5406485), (5, 4325188), (7, 3089420), (10, 2162594), (14, 1544710), (20, 1081297), (28, 772355), (35, 617884), (70, 308942), (113, 191380), (140, 154471), (226, 95690), (452, 47845), (565, 38276), (791, 27340), (1130, 19138), (1367, 15820), (1582, 13670), (2260, 9569), (2734, 7910), (3164, 6835), (3955, 5468)]