19840821

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6607}}^1$

素因数の和:6641

約数の個数: 32

約数和(自身を含む): 35524608

約数和(自身を除く): 15683787

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 6607, 19821, 46249, 72677, 85891, 138747, 218031, 257673, 508739, 601237, 944801, 1526217, 1803711, 2834403, 6613607, 19840821]

約数ペア:

[(1, 19840821), (3, 6613607), (7, 2834403), (11, 1803711), (13, 1526217), (21, 944801), (33, 601237), (39, 508739), (77, 257673), (91, 218031), (143, 138747), (231, 85891), (273, 72677), (429, 46249), (1001, 19821), (3003, 6607)]