21815456625

素因数分解:

$3^4\times 5^3\times {\mathrm{29}}^1\times {\mathrm{74297}}^1$

素因数の和:74353

約数の個数: 80

約数和(自身を含む): 42073471440

約数和(自身を除く): 20258014815

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 81, 87, 125, 135, 145, 225, 261, 375, 405, 435, 675, 725, 783, 1125, 1305, 2025, 2175, 2349, 3375, 3625, 3915, 6525, 10125, 10875, 11745, 19575, 32625, 58725, 74297, 97875, 222891, 293625, 371485, 668673, 1114455, 1857425, 2006019, 2154613, 3343365, 5572275, 6018057, 6463839, 9287125, 10030095, 10773065, 16716825, 19391517, 27861375, 30090285, 32319195, 50150475, 53865325, 58174551, 83584125, 96957585, 150451425, 161595975, 174523653, 250752375, 269326625, 290872755, 484787925, 752257125, 807979875, 872618265, 1454363775, 2423939625, 4363091325, 7271818875, 21815456625]

約数ペア:

[(1, 21815456625), (3, 7271818875), (5, 4363091325), (9, 2423939625), (15, 1454363775), (25, 872618265), (27, 807979875), (29, 752257125), (45, 484787925), (75, 290872755), (81, 269326625), (87, 250752375), (125, 174523653), (135, 161595975), (145, 150451425), (225, 96957585), (261, 83584125), (375, 58174551), (405, 53865325), (435, 50150475), (675, 32319195), (725, 30090285), (783, 27861375), (1125, 19391517), (1305, 16716825), (2025, 10773065), (2175, 10030095), (2349, 9287125), (3375, 6463839), (3625, 6018057), (3915, 5572275), (6525, 3343365), (10125, 2154613), (10875, 2006019), (11745, 1857425), (19575, 1114455), (32625, 668673), (58725, 371485), (74297, 293625), (97875, 222891)]