28911141

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 52684800

約数和(自身を除く): 23773659

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 83, 97, 133, 171, 189, 249, 291, 399, 513, 581, 679, 747, 873, 1197, 1577, 1743, 1843, 2037, 2241, 2619, 3591, 4731, 5229, 5529, 6111, 8051, 11039, 12901, 14193, 15687, 16587, 18333, 24153, 33117, 38703, 42579, 49761, 56357, 72459, 99351, 116109, 152969, 169071, 217377, 298053, 348327, 458907, 507213, 1070783, 1376721, 1521639, 3212349, 4130163, 9637047, 28911141]

約数ペア:

[(1, 28911141), (3, 9637047), (7, 4130163), (9, 3212349), (19, 1521639), (21, 1376721), (27, 1070783), (57, 507213), (63, 458907), (83, 348327), (97, 298053), (133, 217377), (171, 169071), (189, 152969), (249, 116109), (291, 99351), (399, 72459), (513, 56357), (581, 49761), (679, 42579), (747, 38703), (873, 33117), (1197, 24153), (1577, 18333), (1743, 16587), (1843, 15687), (2037, 14193), (2241, 12901), (2619, 11039), (3591, 8051), (4731, 6111), (5229, 5529)]