19877328

素因数分解:

$2^4\times 3^2\times {\mathrm{223}}^1\times {\mathrm{619}}^1$

素因数の和:856

約数の個数: 60

約数和(自身を含む): 55968640

約数和(自身を除く): 36091312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 223, 446, 619, 669, 892, 1238, 1338, 1784, 1857, 2007, 2476, 2676, 3568, 3714, 4014, 4952, 5352, 5571, 7428, 8028, 9904, 10704, 11142, 14856, 16056, 22284, 29712, 32112, 44568, 89136, 138037, 276074, 414111, 552148, 828222, 1104296, 1242333, 1656444, 2208592, 2484666, 3312888, 4969332, 6625776, 9938664, 19877328]

約数ペア:

[(1, 19877328), (2, 9938664), (3, 6625776), (4, 4969332), (6, 3312888), (8, 2484666), (9, 2208592), (12, 1656444), (16, 1242333), (18, 1104296), (24, 828222), (36, 552148), (48, 414111), (72, 276074), (144, 138037), (223, 89136), (446, 44568), (619, 32112), (669, 29712), (892, 22284), (1238, 16056), (1338, 14856), (1784, 11142), (1857, 10704), (2007, 9904), (2476, 8028), (2676, 7428), (3568, 5571), (3714, 5352), (4014, 4952)]