21083800

素因数分解:

$2^3\times 5^2\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 49327200

約数和(自身を除く): 28243400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 271, 389, 542, 778, 1084, 1355, 1556, 1945, 2168, 2710, 3112, 3890, 5420, 6775, 7780, 9725, 10840, 13550, 15560, 19450, 27100, 38900, 54200, 77800, 105419, 210838, 421676, 527095, 843352, 1054190, 2108380, 2635475, 4216760, 5270950, 10541900, 21083800]

約数ペア:

[(1, 21083800), (2, 10541900), (4, 5270950), (5, 4216760), (8, 2635475), (10, 2108380), (20, 1054190), (25, 843352), (40, 527095), (50, 421676), (100, 210838), (200, 105419), (271, 77800), (389, 54200), (542, 38900), (778, 27100), (1084, 19450), (1355, 15560), (1556, 13550), (1945, 10840), (2168, 9725), (2710, 7780), (3112, 6775), (3890, 5420)]