81424899

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 135782400

約数和(自身を除く): 54357501

約数列:

[1, 3, 9, 19, 23, 27, 57, 67, 69, 103, 171, 201, 207, 309, 437, 513, 603, 621, 927, 1273, 1311, 1541, 1809, 1957, 2369, 2781, 3819, 3933, 4623, 5871, 6901, 7107, 11457, 11799, 13869, 17613, 20703, 21321, 29279, 34371, 41607, 45011, 52839, 62109, 63963, 87837, 131119, 135033, 158723, 186327, 263511, 393357, 405099, 476169, 790533, 1180071, 1215297, 1428507, 3015737, 3540213, 4285521, 9047211, 27141633, 81424899]

約数ペア:

[(1, 81424899), (3, 27141633), (9, 9047211), (19, 4285521), (23, 3540213), (27, 3015737), (57, 1428507), (67, 1215297), (69, 1180071), (103, 790533), (171, 476169), (201, 405099), (207, 393357), (309, 263511), (437, 186327), (513, 158723), (603, 135033), (621, 131119), (927, 87837), (1273, 63963), (1311, 62109), (1541, 52839), (1809, 45011), (1957, 41607), (2369, 34371), (2781, 29279), (3819, 21321), (3933, 20703), (4623, 17613), (5871, 13869), (6901, 11799), (7107, 11457)]