19081908

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 50181768

約数和(自身を除く): 31099860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 73, 106, 137, 146, 159, 212, 219, 274, 292, 318, 411, 438, 477, 548, 636, 657, 822, 876, 954, 1233, 1314, 1644, 1908, 2466, 2628, 3869, 4932, 7261, 7738, 10001, 11607, 14522, 15476, 20002, 21783, 23214, 29044, 30003, 34821, 40004, 43566, 46428, 60006, 65349, 69642, 87132, 90009, 120012, 130698, 139284, 180018, 261396, 360036, 530053, 1060106, 1590159, 2120212, 3180318, 4770477, 6360636, 9540954, 19081908]

約数ペア:

[(1, 19081908), (2, 9540954), (3, 6360636), (4, 4770477), (6, 3180318), (9, 2120212), (12, 1590159), (18, 1060106), (36, 530053), (53, 360036), (73, 261396), (106, 180018), (137, 139284), (146, 130698), (159, 120012), (212, 90009), (219, 87132), (274, 69642), (292, 65349), (318, 60006), (411, 46428), (438, 43566), (477, 40004), (548, 34821), (636, 30003), (657, 29044), (822, 23214), (876, 21783), (954, 20002), (1233, 15476), (1314, 14522), (1644, 11607), (1908, 10001), (2466, 7738), (2628, 7261), (3869, 4932)]