21097875

素因数分解:

$3^1\times 5^3\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:588

約数の個数: 32

約数和(自身を含む): 35463168

約数和(自身を除く): 14365293

約数列:

[1, 3, 5, 15, 25, 75, 125, 127, 375, 381, 443, 635, 1329, 1905, 2215, 3175, 6645, 9525, 11075, 15875, 33225, 47625, 55375, 56261, 166125, 168783, 281305, 843915, 1406525, 4219575, 7032625, 21097875]

約数ペア:

[(1, 21097875), (3, 7032625), (5, 4219575), (15, 1406525), (25, 843915), (75, 281305), (125, 168783), (127, 166125), (375, 56261), (381, 55375), (443, 47625), (635, 33225), (1329, 15875), (1905, 11075), (2215, 9525), (3175, 6645)]