21209156943

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{116177}}^1$

素因数の和:116375

約数の個数: 32

約数和(自身を含む): 31645028352

約数和(自身を除く): 10435871409

約数列:

[1, 3, 13, 31, 39, 93, 151, 403, 453, 1209, 1963, 4681, 5889, 14043, 60853, 116177, 182559, 348531, 1510301, 3601487, 4530903, 10804461, 17542727, 46819331, 52628181, 140457993, 228055451, 543824537, 684166353, 1631473611, 7069718981, 21209156943]

約数ペア:

[(1, 21209156943), (3, 7069718981), (13, 1631473611), (31, 684166353), (39, 543824537), (93, 228055451), (151, 140457993), (403, 52628181), (453, 46819331), (1209, 17542727), (1963, 10804461), (4681, 4530903), (5889, 3601487), (14043, 1510301), (60853, 348531), (116177, 182559)]