19907217

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{953}}^1$

素因数の和:1181

約数の個数: 24

約数和(自身を含む): 31550688

約数和(自身を除く): 11643471

約数列:

[1, 3, 9, 11, 33, 99, 211, 633, 953, 1899, 2321, 2859, 6963, 8577, 10483, 20889, 31449, 94347, 201083, 603249, 1809747, 2211913, 6635739, 19907217]

約数ペア:

[(1, 19907217), (3, 6635739), (9, 2211913), (11, 1809747), (33, 603249), (99, 201083), (211, 94347), (633, 31449), (953, 20889), (1899, 10483), (2321, 8577), (2859, 6963)]