21137850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:564

約数の個数: 72

約数和(自身を含む): 57451680

約数和(自身を除く): 36313830

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 107, 150, 214, 225, 321, 439, 450, 535, 642, 878, 963, 1070, 1317, 1605, 1926, 2195, 2634, 2675, 3210, 3951, 4390, 4815, 5350, 6585, 7902, 8025, 9630, 10975, 13170, 16050, 19755, 21950, 24075, 32925, 39510, 46973, 48150, 65850, 93946, 98775, 140919, 197550, 234865, 281838, 422757, 469730, 704595, 845514, 1174325, 1409190, 2113785, 2348650, 3522975, 4227570, 7045950, 10568925, 21137850]

約数ペア:

[(1, 21137850), (2, 10568925), (3, 7045950), (5, 4227570), (6, 3522975), (9, 2348650), (10, 2113785), (15, 1409190), (18, 1174325), (25, 845514), (30, 704595), (45, 469730), (50, 422757), (75, 281838), (90, 234865), (107, 197550), (150, 140919), (214, 98775), (225, 93946), (321, 65850), (439, 48150), (450, 46973), (535, 39510), (642, 32925), (878, 24075), (963, 21950), (1070, 19755), (1317, 16050), (1605, 13170), (1926, 10975), (2195, 9630), (2634, 8025), (2675, 7902), (3210, 6585), (3951, 5350), (4390, 4815)]