21608930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1567}}^1$

素因数の和:1778

約数の個数: 32

約数和(自身を含む): 44706816

約数和(自身を除く): 23097886

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1379, 1567, 1970, 2758, 3134, 6895, 7835, 10969, 13790, 15670, 21938, 54845, 109690, 308699, 617398, 1543495, 2160893, 3086990, 4321786, 10804465, 21608930]

約数ペア:

[(1, 21608930), (2, 10804465), (5, 4321786), (7, 3086990), (10, 2160893), (14, 1543495), (35, 617398), (70, 308699), (197, 109690), (394, 54845), (985, 21938), (1379, 15670), (1567, 13790), (1970, 10969), (2758, 7835), (3134, 6895)]