21860925

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 41143200

約数和(自身を除く): 19282275

約数列:

[1, 3, 5, 15, 19, 23, 25, 29, 57, 69, 75, 87, 95, 115, 145, 285, 345, 435, 437, 475, 529, 551, 575, 667, 725, 1311, 1425, 1587, 1653, 1725, 2001, 2175, 2185, 2645, 2755, 3335, 6555, 7935, 8265, 10005, 10051, 10925, 12673, 13225, 13775, 15341, 16675, 30153, 32775, 38019, 39675, 41325, 46023, 50025, 50255, 63365, 76705, 150765, 190095, 230115, 251275, 291479, 316825, 383525, 753825, 874437, 950475, 1150575, 1457395, 4372185, 7286975, 21860925]

約数ペア:

[(1, 21860925), (3, 7286975), (5, 4372185), (15, 1457395), (19, 1150575), (23, 950475), (25, 874437), (29, 753825), (57, 383525), (69, 316825), (75, 291479), (87, 251275), (95, 230115), (115, 190095), (145, 150765), (285, 76705), (345, 63365), (435, 50255), (437, 50025), (475, 46023), (529, 41325), (551, 39675), (575, 38019), (667, 32775), (725, 30153), (1311, 16675), (1425, 15341), (1587, 13775), (1653, 13225), (1725, 12673), (2001, 10925), (2175, 10051), (2185, 10005), (2645, 8265), (2755, 7935), (3335, 6555)]