979856871

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 1551771648

約数和(自身を除く): 571914777

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 223, 421, 497, 669, 1263, 1491, 1561, 2947, 3479, 4683, 8841, 10437, 10927, 15833, 20629, 29891, 32781, 47499, 61887, 89673, 93883, 110831, 209237, 281649, 332493, 627711, 657181, 775817, 1464659, 1971543, 2327451, 4393977, 4600267, 6665693, 13800801, 19997079, 46659851, 139979553, 326618957, 979856871]

約数ペア:

[(1, 979856871), (3, 326618957), (7, 139979553), (21, 46659851), (49, 19997079), (71, 13800801), (147, 6665693), (213, 4600267), (223, 4393977), (421, 2327451), (497, 1971543), (669, 1464659), (1263, 775817), (1491, 657181), (1561, 627711), (2947, 332493), (3479, 281649), (4683, 209237), (8841, 110831), (10437, 93883), (10927, 89673), (15833, 61887), (20629, 47499), (29891, 32781)]