642370197

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{28297}}^1$

素因数の和:28377

約数の個数: 32

約数和(自身を含む): 1043177472

約数和(自身を除く): 400807275

約数列:

[1, 3, 7, 21, 23, 47, 69, 141, 161, 329, 483, 987, 1081, 3243, 7567, 22701, 28297, 84891, 198079, 594237, 650831, 1329959, 1952493, 3989877, 4555817, 9309713, 13667451, 27929139, 30589057, 91767171, 214123399, 642370197]

約数ペア:

[(1, 642370197), (3, 214123399), (7, 91767171), (21, 30589057), (23, 27929139), (47, 13667451), (69, 9309713), (141, 4555817), (161, 3989877), (329, 1952493), (483, 1329959), (987, 650831), (1081, 594237), (3243, 198079), (7567, 84891), (22701, 28297)]