19725057

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:394

約数の個数: 36

約数和(自身を含む): 31951920

約数和(自身を除く): 12226863

約数列:

[1, 3, 9, 11, 33, 59, 99, 121, 177, 307, 363, 531, 649, 921, 1089, 1947, 2763, 3377, 5841, 7139, 10131, 18113, 21417, 30393, 37147, 54339, 64251, 111441, 163017, 199243, 334323, 597729, 1793187, 2191673, 6575019, 19725057]

約数ペア:

[(1, 19725057), (3, 6575019), (9, 2191673), (11, 1793187), (33, 597729), (59, 334323), (99, 199243), (121, 163017), (177, 111441), (307, 64251), (363, 54339), (531, 37147), (649, 30393), (921, 21417), (1089, 18113), (1947, 10131), (2763, 7139), (3377, 5841)]