221888408

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107089}}^1$

素因数の和:107139

約数の個数: 32

約数和(自身を含む): 488330400

約数和(自身を除く): 266441992

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 107089, 214178, 428356, 749623, 856712, 1499246, 2998492, 3962293, 5996984, 7924586, 15849172, 27736051, 31698344, 55472102, 110944204, 221888408]

約数ペア:

[(1, 221888408), (2, 110944204), (4, 55472102), (7, 31698344), (8, 27736051), (14, 15849172), (28, 7924586), (37, 5996984), (56, 3962293), (74, 2998492), (148, 1499246), (259, 856712), (296, 749623), (518, 428356), (1036, 214178), (2072, 107089)]