221473365

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{2063}}^1$

素因数の和:2509

約数の個数: 32

約数和(自身を含む): 376275456

約数和(自身を除く): 154802091

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 421, 1263, 2063, 2105, 6189, 6315, 7157, 10315, 21471, 30945, 35071, 35785, 105213, 107355, 175355, 526065, 868523, 2605569, 4342615, 13027845, 14764891, 44294673, 73824455, 221473365]

約数ペア:

[(1, 221473365), (3, 73824455), (5, 44294673), (15, 14764891), (17, 13027845), (51, 4342615), (85, 2605569), (255, 868523), (421, 526065), (1263, 175355), (2063, 107355), (2105, 105213), (6189, 35785), (6315, 35071), (7157, 30945), (10315, 21471)]