21066430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26833730

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 109, 110, 154, 218, 251, 385, 502, 545, 763, 770, 1090, 1199, 1255, 1526, 1757, 2398, 2510, 2761, 3514, 3815, 5522, 5995, 7630, 8393, 8785, 11990, 13805, 16786, 17570, 19327, 27359, 27610, 38654, 41965, 54718, 83930, 96635, 136795, 191513, 193270, 273590, 300949, 383026, 601898, 957565, 1504745, 1915130, 2106643, 3009490, 4213286, 10533215, 21066430]

約数ペア:

[(1, 21066430), (2, 10533215), (5, 4213286), (7, 3009490), (10, 2106643), (11, 1915130), (14, 1504745), (22, 957565), (35, 601898), (55, 383026), (70, 300949), (77, 273590), (109, 193270), (110, 191513), (154, 136795), (218, 96635), (251, 83930), (385, 54718), (502, 41965), (545, 38654), (763, 27610), (770, 27359), (1090, 19327), (1199, 17570), (1255, 16786), (1526, 13805), (1757, 11990), (2398, 8785), (2510, 8393), (2761, 7630), (3514, 5995), (3815, 5522)]