18770766

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 45176832

約数和(自身を除く): 26406066

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 47, 74, 94, 111, 141, 222, 257, 259, 282, 329, 514, 518, 658, 771, 777, 987, 1542, 1554, 1739, 1799, 1974, 3478, 3598, 5217, 5397, 9509, 10434, 10794, 12079, 12173, 19018, 24158, 24346, 28527, 36237, 36519, 57054, 66563, 72474, 73038, 84553, 133126, 169106, 199689, 253659, 399378, 446923, 507318, 893846, 1340769, 2681538, 3128461, 6256922, 9385383, 18770766]

約数ペア:

[(1, 18770766), (2, 9385383), (3, 6256922), (6, 3128461), (7, 2681538), (14, 1340769), (21, 893846), (37, 507318), (42, 446923), (47, 399378), (74, 253659), (94, 199689), (111, 169106), (141, 133126), (222, 84553), (257, 73038), (259, 72474), (282, 66563), (329, 57054), (514, 36519), (518, 36237), (658, 28527), (771, 24346), (777, 24158), (987, 19018), (1542, 12173), (1554, 12079), (1739, 10794), (1799, 10434), (1974, 9509), (3478, 5397), (3598, 5217)]