21654668

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 47860848

約数和(自身を除く): 26206180

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 67, 68, 97, 98, 119, 134, 194, 196, 238, 268, 388, 469, 476, 679, 833, 938, 1139, 1358, 1649, 1666, 1876, 2278, 2716, 3283, 3298, 3332, 4556, 4753, 6499, 6566, 6596, 7973, 9506, 11543, 12998, 13132, 15946, 19012, 23086, 25996, 31892, 45493, 46172, 55811, 80801, 90986, 110483, 111622, 161602, 181972, 220966, 223244, 318451, 323204, 441932, 636902, 773381, 1273804, 1546762, 3093524, 5413667, 10827334, 21654668]

約数ペア:

[(1, 21654668), (2, 10827334), (4, 5413667), (7, 3093524), (14, 1546762), (17, 1273804), (28, 773381), (34, 636902), (49, 441932), (67, 323204), (68, 318451), (97, 223244), (98, 220966), (119, 181972), (134, 161602), (194, 111622), (196, 110483), (238, 90986), (268, 80801), (388, 55811), (469, 46172), (476, 45493), (679, 31892), (833, 25996), (938, 23086), (1139, 19012), (1358, 15946), (1649, 13132), (1666, 12998), (1876, 11543), (2278, 9506), (2716, 7973), (3283, 6596), (3298, 6566), (3332, 6499), (4556, 4753)]