19894653

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 32614400

約数和(自身を除く): 12719747

約数列:

[1, 3, 9, 19, 27, 31, 57, 81, 93, 139, 171, 243, 279, 417, 513, 589, 837, 1251, 1539, 1767, 2511, 2641, 3753, 4309, 4617, 5301, 7533, 7923, 11259, 12927, 15903, 23769, 33777, 38781, 47709, 71307, 81871, 116343, 143127, 213921, 245613, 349029, 641763, 736839, 1047087, 2210517, 6631551, 19894653]

約数ペア:

[(1, 19894653), (3, 6631551), (9, 2210517), (19, 1047087), (27, 736839), (31, 641763), (57, 349029), (81, 245613), (93, 213921), (139, 143127), (171, 116343), (243, 81871), (279, 71307), (417, 47709), (513, 38781), (589, 33777), (837, 23769), (1251, 15903), (1539, 12927), (1767, 11259), (2511, 7923), (2641, 7533), (3753, 5301), (4309, 4617)]