21386090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 23403670

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 79, 107, 110, 115, 158, 214, 230, 253, 395, 506, 535, 790, 869, 1070, 1177, 1265, 1738, 1817, 2354, 2461, 2530, 3634, 4345, 4922, 5885, 8453, 8690, 9085, 11770, 12305, 16906, 18170, 19987, 24610, 27071, 39974, 42265, 54142, 84530, 92983, 99935, 135355, 185966, 194419, 199870, 270710, 388838, 464915, 929830, 972095, 1944190, 2138609, 4277218, 10693045, 21386090]

約数ペア:

[(1, 21386090), (2, 10693045), (5, 4277218), (10, 2138609), (11, 1944190), (22, 972095), (23, 929830), (46, 464915), (55, 388838), (79, 270710), (107, 199870), (110, 194419), (115, 185966), (158, 135355), (214, 99935), (230, 92983), (253, 84530), (395, 54142), (506, 42265), (535, 39974), (790, 27071), (869, 24610), (1070, 19987), (1177, 18170), (1265, 16906), (1738, 12305), (1817, 11770), (2354, 9085), (2461, 8690), (2530, 8453), (3634, 5885), (4345, 4922)]