31252851

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 25978509

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 71, 119, 137, 153, 189, 213, 357, 411, 459, 497, 639, 959, 1071, 1207, 1233, 1491, 1917, 2329, 2877, 3213, 3621, 3699, 4473, 6987, 8449, 8631, 9727, 10863, 13419, 16303, 20961, 25347, 25893, 29181, 32589, 48909, 62883, 68089, 76041, 87543, 146727, 165359, 204267, 228123, 262629, 440181, 496077, 612801, 1157513, 1488231, 1838403, 3472539, 4464693, 10417617, 31252851]

約数ペア:

[(1, 31252851), (3, 10417617), (7, 4464693), (9, 3472539), (17, 1838403), (21, 1488231), (27, 1157513), (51, 612801), (63, 496077), (71, 440181), (119, 262629), (137, 228123), (153, 204267), (189, 165359), (213, 146727), (357, 87543), (411, 76041), (459, 68089), (497, 62883), (639, 48909), (959, 32589), (1071, 29181), (1207, 25893), (1233, 25347), (1491, 20961), (1917, 16303), (2329, 13419), (2877, 10863), (3213, 9727), (3621, 8631), (3699, 8449), (4473, 6987)]