21103902

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 80

約数和(自身を含む): 51226560

約数和(自身を除く): 30122658

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 79, 81, 97, 102, 153, 158, 162, 194, 237, 291, 306, 459, 474, 582, 711, 873, 918, 1343, 1377, 1422, 1649, 1746, 2133, 2619, 2686, 2754, 3298, 4029, 4266, 4947, 5238, 6399, 7663, 7857, 8058, 9894, 12087, 12798, 14841, 15326, 15714, 22989, 24174, 29682, 36261, 44523, 45978, 68967, 72522, 89046, 108783, 130271, 133569, 137934, 206901, 217566, 260542, 267138, 390813, 413802, 620703, 781626, 1172439, 1241406, 2344878, 3517317, 7034634, 10551951, 21103902]

約数ペア:

[(1, 21103902), (2, 10551951), (3, 7034634), (6, 3517317), (9, 2344878), (17, 1241406), (18, 1172439), (27, 781626), (34, 620703), (51, 413802), (54, 390813), (79, 267138), (81, 260542), (97, 217566), (102, 206901), (153, 137934), (158, 133569), (162, 130271), (194, 108783), (237, 89046), (291, 72522), (306, 68967), (459, 45978), (474, 44523), (582, 36261), (711, 29682), (873, 24174), (918, 22989), (1343, 15714), (1377, 15326), (1422, 14841), (1649, 12798), (1746, 12087), (2133, 9894), (2619, 8058), (2686, 7857), (2754, 7663), (3298, 6399), (4029, 5238), (4266, 4947)]