81613917

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 158146560

約数和(自身を除く): 76532643

約数列:

[1, 3, 7, 9, 11, 21, 29, 31, 33, 63, 77, 87, 93, 99, 131, 203, 217, 231, 261, 279, 319, 341, 393, 609, 651, 693, 899, 917, 957, 1023, 1179, 1441, 1827, 1953, 2233, 2387, 2697, 2751, 2871, 3069, 3799, 4061, 4323, 6293, 6699, 7161, 8091, 8253, 9889, 10087, 11397, 12183, 12969, 18879, 20097, 21483, 26593, 28427, 29667, 30261, 34191, 36549, 41789, 44671, 56637, 69223, 79779, 85281, 89001, 90783, 117769, 125367, 134013, 207669, 239337, 255843, 292523, 312697, 353307, 376101, 402039, 623007, 824383, 877569, 938091, 1059921, 1295459, 2473149, 2632707, 2814273, 3886377, 7419447, 9068213, 11659131, 27204639, 81613917]

約数ペア:

[(1, 81613917), (3, 27204639), (7, 11659131), (9, 9068213), (11, 7419447), (21, 3886377), (29, 2814273), (31, 2632707), (33, 2473149), (63, 1295459), (77, 1059921), (87, 938091), (93, 877569), (99, 824383), (131, 623007), (203, 402039), (217, 376101), (231, 353307), (261, 312697), (279, 292523), (319, 255843), (341, 239337), (393, 207669), (609, 134013), (651, 125367), (693, 117769), (899, 90783), (917, 89001), (957, 85281), (1023, 79779), (1179, 69223), (1441, 56637), (1827, 44671), (1953, 41789), (2233, 36549), (2387, 34191), (2697, 30261), (2751, 29667), (2871, 28427), (3069, 26593), (3799, 21483), (4061, 20097), (4323, 18879), (6293, 12969), (6699, 12183), (7161, 11397), (8091, 10087), (8253, 9889)]