21945910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 48356352

約数和(自身を除く): 26410442

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 43, 46, 70, 86, 115, 161, 215, 230, 301, 317, 322, 430, 602, 634, 805, 989, 1505, 1585, 1610, 1978, 2219, 3010, 3170, 4438, 4945, 6923, 7291, 9890, 11095, 13631, 13846, 14582, 22190, 27262, 34615, 36455, 51037, 68155, 69230, 72910, 95417, 102074, 136310, 190834, 255185, 313513, 477085, 510370, 627026, 954170, 1567565, 2194591, 3135130, 4389182, 10972955, 21945910]

約数ペア:

[(1, 21945910), (2, 10972955), (5, 4389182), (7, 3135130), (10, 2194591), (14, 1567565), (23, 954170), (35, 627026), (43, 510370), (46, 477085), (70, 313513), (86, 255185), (115, 190834), (161, 136310), (215, 102074), (230, 95417), (301, 72910), (317, 69230), (322, 68155), (430, 51037), (602, 36455), (634, 34615), (805, 27262), (989, 22190), (1505, 14582), (1585, 13846), (1610, 13631), (1978, 11095), (2219, 9890), (3010, 7291), (3170, 6923), (4438, 4945)]