21291363921

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1\times {\mathrm{4591}}^1$

素因数の和:5733

約数の個数: 32

約数和(自身を含む): 29962469376

約数和(自身を除く): 8671105455

約数列:

[1, 3, 31, 47, 93, 141, 1061, 1457, 3183, 4371, 4591, 13773, 32891, 49867, 98673, 142321, 149601, 215777, 426963, 647331, 1545877, 4637631, 4871051, 6689087, 14613153, 20067261, 151002581, 228939397, 453007743, 686818191, 7097121307, 21291363921]

約数ペア:

[(1, 21291363921), (3, 7097121307), (31, 686818191), (47, 453007743), (93, 228939397), (141, 151002581), (1061, 20067261), (1457, 14613153), (3183, 6689087), (4371, 4871051), (4591, 4637631), (13773, 1545877), (32891, 647331), (49867, 426963), (98673, 215777), (142321, 149601)]