220117821

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13421}}^1$

素因数の和:13513

約数の個数: 32

約数和(自身を含む): 371091456

約数和(自身を除く): 150973635

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1491, 2343, 5467, 13421, 16401, 40263, 93947, 147631, 281841, 442893, 952891, 1033417, 2858673, 3100251, 6670237, 10481801, 20010711, 31445403, 73372607, 220117821]

約数ペア:

[(1, 220117821), (3, 73372607), (7, 31445403), (11, 20010711), (21, 10481801), (33, 6670237), (71, 3100251), (77, 2858673), (213, 1033417), (231, 952891), (497, 442893), (781, 281841), (1491, 147631), (2343, 93947), (5467, 40263), (13421, 16401)]