21738375

素因数分解:

$3^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:159

約数の個数: 80

約数和(自身を含む): 43037280

約数和(自身を除く): 21298905

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 113, 125, 135, 171, 225, 285, 339, 375, 405, 475, 513, 565, 675, 855, 1017, 1125, 1425, 1539, 1695, 2025, 2147, 2375, 2565, 2825, 3051, 3375, 4275, 5085, 6441, 7125, 7695, 8475, 9153, 10125, 10735, 12825, 14125, 15255, 19323, 21375, 25425, 32205, 38475, 42375, 45765, 53675, 57969, 64125, 76275, 96615, 127125, 161025, 173907, 192375, 228825, 268375, 289845, 381375, 483075, 805125, 869535, 1144125, 1449225, 2415375, 4347675, 7246125, 21738375]

約数ペア:

[(1, 21738375), (3, 7246125), (5, 4347675), (9, 2415375), (15, 1449225), (19, 1144125), (25, 869535), (27, 805125), (45, 483075), (57, 381375), (75, 289845), (81, 268375), (95, 228825), (113, 192375), (125, 173907), (135, 161025), (171, 127125), (225, 96615), (285, 76275), (339, 64125), (375, 57969), (405, 53675), (475, 45765), (513, 42375), (565, 38475), (675, 32205), (855, 25425), (1017, 21375), (1125, 19323), (1425, 15255), (1539, 14125), (1695, 12825), (2025, 10735), (2147, 10125), (2375, 9153), (2565, 8475), (2825, 7695), (3051, 7125), (3375, 6441), (4275, 5085)]