19721754

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{311}}^1$

素因数の和:603

約数の個数: 48

約数和(自身を含む): 46335744

約数和(自身を除く): 26613990

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 271, 311, 542, 622, 813, 933, 1626, 1866, 2439, 2799, 3523, 4043, 4878, 5598, 7046, 8086, 10569, 12129, 21138, 24258, 31707, 36387, 63414, 72774, 84281, 168562, 252843, 505686, 758529, 1095653, 1517058, 2191306, 3286959, 6573918, 9860877, 19721754]

約数ペア:

[(1, 19721754), (2, 9860877), (3, 6573918), (6, 3286959), (9, 2191306), (13, 1517058), (18, 1095653), (26, 758529), (39, 505686), (78, 252843), (117, 168562), (234, 84281), (271, 72774), (311, 63414), (542, 36387), (622, 31707), (813, 24258), (933, 21138), (1626, 12129), (1866, 10569), (2439, 8086), (2799, 7046), (3523, 5598), (4043, 4878)]