221628813

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{677}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 367291584

約数和(自身を除く): 145662771

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 131, 147, 357, 393, 677, 833, 917, 2031, 2227, 2499, 2751, 4739, 6419, 6681, 11509, 14217, 15589, 19257, 33173, 34527, 46767, 80563, 88687, 99519, 109123, 241689, 266061, 327369, 563941, 620809, 1507679, 1691823, 1862427, 4345663, 4523037, 10553753, 13036989, 31661259, 73876271, 221628813]

約数ペア:

[(1, 221628813), (3, 73876271), (7, 31661259), (17, 13036989), (21, 10553753), (49, 4523037), (51, 4345663), (119, 1862427), (131, 1691823), (147, 1507679), (357, 620809), (393, 563941), (677, 327369), (833, 266061), (917, 241689), (2031, 109123), (2227, 99519), (2499, 88687), (2751, 80563), (4739, 46767), (6419, 34527), (6681, 33173), (11509, 19257), (14217, 15589)]