21081150

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{593}}^1$

素因数の和:690

約数の個数: 72

約数和(自身を含む): 57451680

約数和(自身を除く): 36370530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 79, 90, 150, 158, 225, 237, 395, 450, 474, 593, 711, 790, 1185, 1186, 1422, 1779, 1975, 2370, 2965, 3555, 3558, 3950, 5337, 5925, 5930, 7110, 8895, 10674, 11850, 14825, 17775, 17790, 26685, 29650, 35550, 44475, 46847, 53370, 88950, 93694, 133425, 140541, 234235, 266850, 281082, 421623, 468470, 702705, 843246, 1171175, 1405410, 2108115, 2342350, 3513525, 4216230, 7027050, 10540575, 21081150]

約数ペア:

[(1, 21081150), (2, 10540575), (3, 7027050), (5, 4216230), (6, 3513525), (9, 2342350), (10, 2108115), (15, 1405410), (18, 1171175), (25, 843246), (30, 702705), (45, 468470), (50, 421623), (75, 281082), (79, 266850), (90, 234235), (150, 140541), (158, 133425), (225, 93694), (237, 88950), (395, 53370), (450, 46847), (474, 44475), (593, 35550), (711, 29650), (790, 26685), (1185, 17790), (1186, 17775), (1422, 14825), (1779, 11850), (1975, 10674), (2370, 8895), (2965, 7110), (3555, 5930), (3558, 5925), (3950, 5337)]