21784431720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10678643}}^1$

素因数の和:10678674

約数の個数: 64

約数和(自身を含む): 69197613120

約数和(自身を除く): 47413181400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10678643, 21357286, 32035929, 42714572, 53393215, 64071858, 85429144, 106786430, 128143716, 160179645, 181536931, 213572860, 256287432, 320359290, 363073862, 427145720, 544610793, 640718580, 726147724, 907684655, 1089221586, 1281437160, 1452295448, 1815369310, 2178443172, 2723053965, 3630738620, 4356886344, 5446107930, 7261477240, 10892215860, 21784431720]

約数ペア:

[(1, 21784431720), (2, 10892215860), (3, 7261477240), (4, 5446107930), (5, 4356886344), (6, 3630738620), (8, 2723053965), (10, 2178443172), (12, 1815369310), (15, 1452295448), (17, 1281437160), (20, 1089221586), (24, 907684655), (30, 726147724), (34, 640718580), (40, 544610793), (51, 427145720), (60, 363073862), (68, 320359290), (85, 256287432), (102, 213572860), (120, 181536931), (136, 160179645), (170, 128143716), (204, 106786430), (255, 85429144), (340, 64071858), (408, 53393215), (510, 42714572), (680, 32035929), (1020, 21357286), (2040, 10678643)]