1389444

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 4021920

約数和(自身を除く): 2632476

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 49, 51, 68, 84, 98, 102, 119, 139, 147, 196, 204, 238, 278, 294, 357, 417, 476, 556, 588, 714, 833, 834, 973, 1428, 1666, 1668, 1946, 2363, 2499, 2919, 3332, 3892, 4726, 4998, 5838, 6811, 7089, 9452, 9996, 11676, 13622, 14178, 16541, 20433, 27244, 28356, 33082, 40866, 49623, 66164, 81732, 99246, 115787, 198492, 231574, 347361, 463148, 694722, 1389444]

約数ペア:

[(1, 1389444), (2, 694722), (3, 463148), (4, 347361), (6, 231574), (7, 198492), (12, 115787), (14, 99246), (17, 81732), (21, 66164), (28, 49623), (34, 40866), (42, 33082), (49, 28356), (51, 27244), (68, 20433), (84, 16541), (98, 14178), (102, 13622), (119, 11676), (139, 9996), (147, 9452), (196, 7089), (204, 6811), (238, 5838), (278, 4998), (294, 4726), (357, 3892), (417, 3332), (476, 2919), (556, 2499), (588, 2363), (714, 1946), (833, 1668), (834, 1666), (973, 1428)]