21903343225

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{193}}^2\times {\mathrm{547}}^1$

素因数の和:986

約数の個数: 36

約数和(自身を含む): 27987594096

約数和(自身を除く): 6084250871

約数列:

[1, 5, 25, 43, 193, 215, 547, 965, 1075, 2735, 4825, 8299, 13675, 23521, 37249, 41495, 105571, 117605, 186245, 207475, 527855, 588025, 931225, 1601707, 2639275, 4539553, 8008535, 20375203, 22697765, 40042675, 101876015, 113488825, 509380075, 876133729, 4380668645, 21903343225]

約数ペア:

[(1, 21903343225), (5, 4380668645), (25, 876133729), (43, 509380075), (193, 113488825), (215, 101876015), (547, 40042675), (965, 22697765), (1075, 20375203), (2735, 8008535), (4825, 4539553), (8299, 2639275), (13675, 1601707), (23521, 931225), (37249, 588025), (41495, 527855), (105571, 207475), (117605, 186245)]