19489678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 33022080

約数和(自身を除く): 13532402

約数列:

[1, 2, 13, 26, 41, 47, 82, 94, 389, 533, 611, 778, 1066, 1222, 1927, 3854, 5057, 10114, 15949, 18283, 25051, 31898, 36566, 50102, 207337, 237679, 414674, 475358, 749603, 1499206, 9744839, 19489678]

約数ペア:

[(1, 19489678), (2, 9744839), (13, 1499206), (26, 749603), (41, 475358), (47, 414674), (82, 237679), (94, 207337), (389, 50102), (533, 36566), (611, 31898), (778, 25051), (1066, 18283), (1222, 15949), (1927, 10114), (3854, 5057)]