28986139

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 38779776

約数和(自身を除く): 9793637

約数列:

[1, 7, 13, 17, 41, 91, 119, 221, 287, 457, 533, 697, 1547, 3199, 3731, 4879, 5941, 7769, 9061, 18737, 41587, 54383, 63427, 100997, 131159, 243581, 318529, 706979, 1705067, 2229703, 4140877, 28986139]

約数ペア:

[(1, 28986139), (7, 4140877), (13, 2229703), (17, 1705067), (41, 706979), (91, 318529), (119, 243581), (221, 131159), (287, 100997), (457, 63427), (533, 54383), (697, 41587), (1547, 18737), (3199, 9061), (3731, 7769), (4879, 5941)]