21500688

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1012

約数の個数: 80

約数和(自身を含む): 62067456

約数和(自身を除く): 40566768

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 43, 44, 48, 66, 86, 88, 129, 132, 172, 176, 258, 264, 344, 473, 516, 528, 688, 946, 947, 1032, 1419, 1892, 1894, 2064, 2838, 2841, 3784, 3788, 5676, 5682, 7568, 7576, 10417, 11352, 11364, 15152, 20834, 22704, 22728, 31251, 40721, 41668, 45456, 62502, 81442, 83336, 122163, 125004, 162884, 166672, 244326, 250008, 325768, 447931, 488652, 500016, 651536, 895862, 977304, 1343793, 1791724, 1954608, 2687586, 3583448, 5375172, 7166896, 10750344, 21500688]

約数ペア:

[(1, 21500688), (2, 10750344), (3, 7166896), (4, 5375172), (6, 3583448), (8, 2687586), (11, 1954608), (12, 1791724), (16, 1343793), (22, 977304), (24, 895862), (33, 651536), (43, 500016), (44, 488652), (48, 447931), (66, 325768), (86, 250008), (88, 244326), (129, 166672), (132, 162884), (172, 125004), (176, 122163), (258, 83336), (264, 81442), (344, 62502), (473, 45456), (516, 41668), (528, 40721), (688, 31251), (946, 22728), (947, 22704), (1032, 20834), (1419, 15152), (1892, 11364), (1894, 11352), (2064, 10417), (2838, 7576), (2841, 7568), (3784, 5682), (3788, 5676)]