128013921

素因数分解:

$3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{5477}}^1$

素因数の和:5550

約数の個数: 36

約数和(自身を含む): 219196692

約数和(自身を除く): 91182771

約数列:

[1, 3, 7, 9, 21, 49, 53, 63, 147, 159, 371, 441, 477, 1113, 2597, 3339, 5477, 7791, 16431, 23373, 38339, 49293, 115017, 268373, 290281, 345051, 805119, 870843, 2031967, 2415357, 2612529, 6095901, 14223769, 18287703, 42671307, 128013921]

約数ペア:

[(1, 128013921), (3, 42671307), (7, 18287703), (9, 14223769), (21, 6095901), (49, 2612529), (53, 2415357), (63, 2031967), (147, 870843), (159, 805119), (371, 345051), (441, 290281), (477, 268373), (1113, 115017), (2597, 49293), (3339, 38339), (5477, 23373), (7791, 16431)]