28191813

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{593}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 43110144

約数和(自身を除く): 14918331

約数列:

[1, 3, 13, 23, 39, 53, 69, 159, 299, 593, 689, 897, 1219, 1779, 2067, 3657, 7709, 13639, 15847, 23127, 31429, 40917, 47541, 94287, 177307, 408577, 531921, 722867, 1225731, 2168601, 9397271, 28191813]

約数ペア:

[(1, 28191813), (3, 9397271), (13, 2168601), (23, 1225731), (39, 722867), (53, 531921), (69, 408577), (159, 177307), (299, 94287), (593, 47541), (689, 40917), (897, 31429), (1219, 23127), (1779, 15847), (2067, 13639), (3657, 7709)]