21839510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 49641984

約数和(自身を除く): 27802474

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 113, 154, 226, 251, 385, 502, 565, 770, 791, 1130, 1243, 1255, 1582, 1757, 2486, 2510, 2761, 3514, 3955, 5522, 6215, 7910, 8701, 8785, 12430, 13805, 17402, 17570, 19327, 27610, 28363, 38654, 43505, 56726, 87010, 96635, 141815, 193270, 198541, 283630, 311993, 397082, 623986, 992705, 1559965, 1985410, 2183951, 3119930, 4367902, 10919755, 21839510]

約数ペア:

[(1, 21839510), (2, 10919755), (5, 4367902), (7, 3119930), (10, 2183951), (11, 1985410), (14, 1559965), (22, 992705), (35, 623986), (55, 397082), (70, 311993), (77, 283630), (110, 198541), (113, 193270), (154, 141815), (226, 96635), (251, 87010), (385, 56726), (502, 43505), (565, 38654), (770, 28363), (791, 27610), (1130, 19327), (1243, 17570), (1255, 17402), (1582, 13805), (1757, 12430), (2486, 8785), (2510, 8701), (2761, 7910), (3514, 6215), (3955, 5522)]