21006890933

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{17327}}^1$

素因数の和:17553

約数の個数: 32

約数和(自身を含む): 25622151168

約数和(自身を除く): 4615260235

約数列:

[1, 7, 31, 37, 151, 217, 259, 1057, 1147, 4681, 5587, 8029, 17327, 32767, 39109, 121289, 173197, 537137, 641099, 1212379, 2616377, 3759959, 4487693, 18314639, 19874069, 81107687, 96805949, 139118483, 567753809, 677641643, 3000984419, 21006890933]

約数ペア:

[(1, 21006890933), (7, 3000984419), (31, 677641643), (37, 567753809), (151, 139118483), (217, 96805949), (259, 81107687), (1057, 19874069), (1147, 18314639), (4681, 4487693), (5587, 3759959), (8029, 2616377), (17327, 1212379), (32767, 641099), (39109, 537137), (121289, 173197)]