21056850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{641}}^1$

素因数の和:732

約数の個数: 72

約数和(自身を含む): 57437172

約数和(自身を除く): 36380322

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 73, 75, 90, 146, 150, 219, 225, 365, 438, 450, 641, 657, 730, 1095, 1282, 1314, 1825, 1923, 2190, 3205, 3285, 3650, 3846, 5475, 5769, 6410, 6570, 9615, 10950, 11538, 16025, 16425, 19230, 28845, 32050, 32850, 46793, 48075, 57690, 93586, 96150, 140379, 144225, 233965, 280758, 288450, 421137, 467930, 701895, 842274, 1169825, 1403790, 2105685, 2339650, 3509475, 4211370, 7018950, 10528425, 21056850]

約数ペア:

[(1, 21056850), (2, 10528425), (3, 7018950), (5, 4211370), (6, 3509475), (9, 2339650), (10, 2105685), (15, 1403790), (18, 1169825), (25, 842274), (30, 701895), (45, 467930), (50, 421137), (73, 288450), (75, 280758), (90, 233965), (146, 144225), (150, 140379), (219, 96150), (225, 93586), (365, 57690), (438, 48075), (450, 46793), (641, 32850), (657, 32050), (730, 28845), (1095, 19230), (1282, 16425), (1314, 16025), (1825, 11538), (1923, 10950), (2190, 9615), (3205, 6570), (3285, 6410), (3650, 5769), (3846, 5475)]