209638647

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 334264320

約数和(自身を除く): 124625673

約数列:

[1, 3, 9, 19, 31, 57, 71, 93, 171, 213, 279, 557, 589, 639, 1349, 1671, 1767, 2201, 4047, 5013, 5301, 6603, 10583, 12141, 17267, 19809, 31749, 39547, 41819, 51801, 95247, 118641, 125457, 155403, 328073, 355923, 376371, 751393, 984219, 1225957, 2254179, 2952657, 3677871, 6762537, 11033613, 23293183, 69879549, 209638647]

約数ペア:

[(1, 209638647), (3, 69879549), (9, 23293183), (19, 11033613), (31, 6762537), (57, 3677871), (71, 2952657), (93, 2254179), (171, 1225957), (213, 984219), (279, 751393), (557, 376371), (589, 355923), (639, 328073), (1349, 155403), (1671, 125457), (1767, 118641), (2201, 95247), (4047, 51801), (5013, 41819), (5301, 39547), (6603, 31749), (10583, 19809), (12141, 17267)]