21837970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:463

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 27928430

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 79, 110, 154, 158, 359, 385, 395, 553, 718, 770, 790, 869, 1106, 1738, 1795, 2513, 2765, 3590, 3949, 4345, 5026, 5530, 6083, 7898, 8690, 12166, 12565, 19745, 25130, 27643, 28361, 30415, 39490, 55286, 56722, 60830, 138215, 141805, 198527, 276430, 283610, 311971, 397054, 623942, 992635, 1559855, 1985270, 2183797, 3119710, 4367594, 10918985, 21837970]

約数ペア:

[(1, 21837970), (2, 10918985), (5, 4367594), (7, 3119710), (10, 2183797), (11, 1985270), (14, 1559855), (22, 992635), (35, 623942), (55, 397054), (70, 311971), (77, 283610), (79, 276430), (110, 198527), (154, 141805), (158, 138215), (359, 60830), (385, 56722), (395, 55286), (553, 39490), (718, 30415), (770, 28361), (790, 27643), (869, 25130), (1106, 19745), (1738, 12565), (1795, 12166), (2513, 8690), (2765, 7898), (3590, 6083), (3949, 5530), (4345, 5026)]