21143340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1163}}^1$

素因数の和:1279

約数の個数: 72

約数和(自身を含む): 64825488

約数和(自身を除く): 43682148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1163, 1212, 1515, 1818, 2020, 2326, 3030, 3489, 3636, 4545, 4652, 5815, 6060, 6978, 9090, 10467, 11630, 13956, 17445, 18180, 20934, 23260, 34890, 41868, 52335, 69780, 104670, 117463, 209340, 234926, 352389, 469852, 587315, 704778, 1057167, 1174630, 1409556, 1761945, 2114334, 2349260, 3523890, 4228668, 5285835, 7047780, 10571670, 21143340]

約数ペア:

[(1, 21143340), (2, 10571670), (3, 7047780), (4, 5285835), (5, 4228668), (6, 3523890), (9, 2349260), (10, 2114334), (12, 1761945), (15, 1409556), (18, 1174630), (20, 1057167), (30, 704778), (36, 587315), (45, 469852), (60, 352389), (90, 234926), (101, 209340), (180, 117463), (202, 104670), (303, 69780), (404, 52335), (505, 41868), (606, 34890), (909, 23260), (1010, 20934), (1163, 18180), (1212, 17445), (1515, 13956), (1818, 11630), (2020, 10467), (2326, 9090), (3030, 6978), (3489, 6060), (3636, 5815), (4545, 4652)]