21167962025

素因数分解:

$5^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3701}}^1$

素因数の和:3784

約数の個数: 96

約数和(自身を含む): 33051456000

約数和(自身を除く): 11883493975

約数列:

[1, 5, 7, 23, 25, 29, 35, 49, 115, 145, 161, 175, 203, 245, 343, 575, 667, 725, 805, 1015, 1127, 1225, 1421, 1715, 3335, 3701, 4025, 4669, 5075, 5635, 7105, 7889, 8575, 9947, 16675, 18505, 23345, 25907, 28175, 32683, 35525, 39445, 49735, 85123, 92525, 107329, 116725, 129535, 163415, 181349, 197225, 228781, 248675, 425615, 536645, 595861, 647675, 751303, 817075, 906745, 1143905, 1269443, 2128075, 2468567, 2683225, 2979305, 3756515, 4171027, 4533725, 5259121, 5719525, 6347215, 12342835, 14896525, 17279969, 18782575, 20855135, 26295605, 29197189, 31736075, 36813847, 61714175, 86399845, 104275675, 120959783, 131478025, 145985945, 184069235, 431999225, 604798915, 729929725, 846718481, 920346175, 3023994575, 4233592405, 21167962025]

約数ペア:

[(1, 21167962025), (5, 4233592405), (7, 3023994575), (23, 920346175), (25, 846718481), (29, 729929725), (35, 604798915), (49, 431999225), (115, 184069235), (145, 145985945), (161, 131478025), (175, 120959783), (203, 104275675), (245, 86399845), (343, 61714175), (575, 36813847), (667, 31736075), (725, 29197189), (805, 26295605), (1015, 20855135), (1127, 18782575), (1225, 17279969), (1421, 14896525), (1715, 12342835), (3335, 6347215), (3701, 5719525), (4025, 5259121), (4669, 4533725), (5075, 4171027), (5635, 3756515), (7105, 2979305), (7889, 2683225), (8575, 2468567), (9947, 2128075), (16675, 1269443), (18505, 1143905), (23345, 906745), (25907, 817075), (28175, 751303), (32683, 647675), (35525, 595861), (39445, 536645), (49735, 425615), (85123, 248675), (92525, 228781), (107329, 197225), (116725, 181349), (129535, 163415)]