21964646

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 40506480

約数和(自身を除く): 18541834

約数列:

[1, 2, 11, 17, 19, 22, 34, 38, 121, 187, 209, 242, 281, 323, 374, 418, 562, 646, 2057, 2299, 3091, 3553, 4114, 4598, 4777, 5339, 6182, 7106, 9554, 10678, 34001, 39083, 52547, 58729, 68002, 78166, 90763, 105094, 117458, 181526, 578017, 646019, 998393, 1156034, 1292038, 1996786, 10982323, 21964646]

約数ペア:

[(1, 21964646), (2, 10982323), (11, 1996786), (17, 1292038), (19, 1156034), (22, 998393), (34, 646019), (38, 578017), (121, 181526), (187, 117458), (209, 105094), (242, 90763), (281, 78166), (323, 68002), (374, 58729), (418, 52547), (562, 39083), (646, 34001), (2057, 10678), (2299, 9554), (3091, 7106), (3553, 6182), (4114, 5339), (4598, 4777)]