18640545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16139}}^1$

素因数の和:16165

約数の個数: 32

約数和(自身を含む): 37186560

約数和(自身を除く): 18546015

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 16139, 48417, 80695, 112973, 177529, 242085, 338919, 532587, 564865, 887645, 1242703, 1694595, 2662935, 3728109, 6213515, 18640545]

約数ペア:

[(1, 18640545), (3, 6213515), (5, 3728109), (7, 2662935), (11, 1694595), (15, 1242703), (21, 887645), (33, 564865), (35, 532587), (55, 338919), (77, 242085), (105, 177529), (165, 112973), (231, 80695), (385, 48417), (1155, 16139)]