19971015

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{541}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 33716736

約数和(自身を除く): 13745721

約数列:

[1, 3, 5, 15, 23, 69, 107, 115, 321, 345, 535, 541, 1605, 1623, 2461, 2705, 7383, 8115, 12305, 12443, 36915, 37329, 57887, 62215, 173661, 186645, 289435, 868305, 1331401, 3994203, 6657005, 19971015]

約数ペア:

[(1, 19971015), (3, 6657005), (5, 3994203), (15, 1331401), (23, 868305), (69, 289435), (107, 186645), (115, 173661), (321, 62215), (345, 57887), (535, 37329), (541, 36915), (1605, 12443), (1623, 12305), (2461, 8115), (2705, 7383)]