218601243

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{647}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 375238656

約数和(自身を除く): 156637413

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 173, 217, 279, 519, 647, 651, 1211, 1557, 1941, 1953, 3633, 4529, 5363, 5823, 10899, 13587, 16089, 20057, 37541, 40761, 48267, 60171, 111931, 112623, 140399, 180513, 335793, 337869, 421197, 783517, 1007379, 1263591, 2350551, 3469861, 7051653, 10409583, 24289027, 31228749, 72867081, 218601243]

約数ペア:

[(1, 218601243), (3, 72867081), (7, 31228749), (9, 24289027), (21, 10409583), (31, 7051653), (63, 3469861), (93, 2350551), (173, 1263591), (217, 1007379), (279, 783517), (519, 421197), (647, 337869), (651, 335793), (1211, 180513), (1557, 140399), (1941, 112623), (1953, 111931), (3633, 60171), (4529, 48267), (5363, 40761), (5823, 37541), (10899, 20057), (13587, 16089)]