18780354

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 42232320

約数和(自身を除く): 23451966

約数列:

[1, 2, 3, 6, 9, 18, 47, 79, 94, 141, 158, 237, 281, 282, 423, 474, 562, 711, 843, 846, 1422, 1686, 2529, 3713, 5058, 7426, 11139, 13207, 22199, 22278, 26414, 33417, 39621, 44398, 66597, 66834, 79242, 118863, 133194, 199791, 237726, 399582, 1043353, 2086706, 3130059, 6260118, 9390177, 18780354]

約数ペア:

[(1, 18780354), (2, 9390177), (3, 6260118), (6, 3130059), (9, 2086706), (18, 1043353), (47, 399582), (79, 237726), (94, 199791), (141, 133194), (158, 118863), (237, 79242), (281, 66834), (282, 66597), (423, 44398), (474, 39621), (562, 33417), (711, 26414), (843, 22278), (846, 22199), (1422, 13207), (1686, 11139), (2529, 7426), (3713, 5058)]