21616665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8951}}^1$

素因数の和:8989

約数の個数: 32

約数和(自身を含む): 41250816

約数和(自身を除く): 19634151

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8951, 26853, 44755, 62657, 134265, 187971, 205873, 313285, 617619, 939855, 1029365, 1441111, 3088095, 4323333, 7205555, 21616665]

約数ペア:

[(1, 21616665), (3, 7205555), (5, 4323333), (7, 3088095), (15, 1441111), (21, 1029365), (23, 939855), (35, 617619), (69, 313285), (105, 205873), (115, 187971), (161, 134265), (345, 62657), (483, 44755), (805, 26853), (2415, 8951)]