21467760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89449}}^1$

素因数の和:89465

約数の個数: 40

約数和(自身を含む): 66550800

約数和(自身を除く): 45083040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89449, 178898, 268347, 357796, 447245, 536694, 715592, 894490, 1073388, 1341735, 1431184, 1788980, 2146776, 2683470, 3577960, 4293552, 5366940, 7155920, 10733880, 21467760]

約数ペア:

[(1, 21467760), (2, 10733880), (3, 7155920), (4, 5366940), (5, 4293552), (6, 3577960), (8, 2683470), (10, 2146776), (12, 1788980), (15, 1431184), (16, 1341735), (20, 1073388), (24, 894490), (30, 715592), (40, 536694), (48, 447245), (60, 357796), (80, 268347), (120, 178898), (240, 89449)]