81215001

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 155623680

約数和(自身を除く): 74408679

約数列:

[1, 3, 7, 9, 17, 21, 23, 27, 49, 51, 63, 69, 119, 147, 153, 157, 161, 189, 207, 357, 391, 441, 459, 471, 483, 621, 833, 1071, 1099, 1127, 1173, 1323, 1413, 1449, 2499, 2669, 2737, 3213, 3297, 3381, 3519, 3611, 4239, 4347, 7497, 7693, 8007, 8211, 9891, 10143, 10557, 10833, 18683, 19159, 22491, 23079, 24021, 24633, 25277, 29673, 30429, 32499, 56049, 57477, 61387, 69237, 72063, 73899, 75831, 97497, 130781, 168147, 172431, 176939, 184161, 207711, 227493, 392343, 429709, 504441, 517293, 530817, 552483, 682479, 1177029, 1289127, 1592451, 1657449, 3007963, 3531087, 3867381, 4777353, 9023889, 11602143, 27071667, 81215001]

約数ペア:

[(1, 81215001), (3, 27071667), (7, 11602143), (9, 9023889), (17, 4777353), (21, 3867381), (23, 3531087), (27, 3007963), (49, 1657449), (51, 1592451), (63, 1289127), (69, 1177029), (119, 682479), (147, 552483), (153, 530817), (157, 517293), (161, 504441), (189, 429709), (207, 392343), (357, 227493), (391, 207711), (441, 184161), (459, 176939), (471, 172431), (483, 168147), (621, 130781), (833, 97497), (1071, 75831), (1099, 73899), (1127, 72063), (1173, 69237), (1323, 61387), (1413, 57477), (1449, 56049), (2499, 32499), (2669, 30429), (2737, 29673), (3213, 25277), (3297, 24633), (3381, 24021), (3519, 23079), (3611, 22491), (4239, 19159), (4347, 18683), (7497, 10833), (7693, 10557), (8007, 10143), (8211, 9891)]