21144705

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{367}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 35610624

約数和(自身を除く): 14465919

約数列:

[1, 3, 5, 15, 23, 69, 115, 167, 345, 367, 501, 835, 1101, 1835, 2505, 3841, 5505, 8441, 11523, 19205, 25323, 42205, 57615, 61289, 126615, 183867, 306445, 919335, 1409647, 4228941, 7048235, 21144705]

約数ペア:

[(1, 21144705), (3, 7048235), (5, 4228941), (15, 1409647), (23, 919335), (69, 306445), (115, 183867), (167, 126615), (345, 61289), (367, 57615), (501, 42205), (835, 25323), (1101, 19205), (1835, 11523), (2505, 8441), (3841, 5505)]