19902708

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{78979}}^1$

素因数の和:78996

約数の個数: 36

約数和(自身を含む): 57497440

約数和(自身を除く): 37594732

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 78979, 157958, 236937, 315916, 473874, 552853, 710811, 947748, 1105706, 1421622, 1658559, 2211412, 2843244, 3317118, 4975677, 6634236, 9951354, 19902708]

約数ペア:

[(1, 19902708), (2, 9951354), (3, 6634236), (4, 4975677), (6, 3317118), (7, 2843244), (9, 2211412), (12, 1658559), (14, 1421622), (18, 1105706), (21, 947748), (28, 710811), (36, 552853), (42, 473874), (63, 315916), (84, 236937), (126, 157958), (252, 78979)]