19787274

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 48142080

約数和(自身を除く): 28354806

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 71, 78, 117, 142, 213, 234, 351, 397, 426, 639, 702, 794, 923, 1191, 1278, 1846, 1917, 2382, 2769, 3573, 3834, 5161, 5538, 7146, 8307, 10322, 10719, 15483, 16614, 21438, 24921, 28187, 30966, 46449, 49842, 56374, 84561, 92898, 139347, 169122, 253683, 278694, 366431, 507366, 732862, 761049, 1099293, 1522098, 2198586, 3297879, 6595758, 9893637, 19787274]

約数ペア:

[(1, 19787274), (2, 9893637), (3, 6595758), (6, 3297879), (9, 2198586), (13, 1522098), (18, 1099293), (26, 761049), (27, 732862), (39, 507366), (54, 366431), (71, 278694), (78, 253683), (117, 169122), (142, 139347), (213, 92898), (234, 84561), (351, 56374), (397, 49842), (426, 46449), (639, 30966), (702, 28187), (794, 24921), (923, 21438), (1191, 16614), (1278, 15483), (1846, 10719), (1917, 10322), (2382, 8307), (2769, 7146), (3573, 5538), (3834, 5161)]