19617213

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{521}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 32873472

約数和(自身を除く): 13256259

約数列:

[1, 3, 7, 11, 21, 33, 77, 163, 231, 489, 521, 1141, 1563, 1793, 3423, 3647, 5379, 5731, 10941, 12551, 17193, 37653, 40117, 84923, 120351, 254769, 594461, 934153, 1783383, 2802459, 6539071, 19617213]

約数ペア:

[(1, 19617213), (3, 6539071), (7, 2802459), (11, 1783383), (21, 934153), (33, 594461), (77, 254769), (163, 120351), (231, 84923), (489, 40117), (521, 37653), (1141, 17193), (1563, 12551), (1793, 10941), (3423, 5731), (3647, 5379)]