21795774

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:246

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 40135746

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 19, 21, 22, 26, 33, 38, 39, 42, 57, 66, 77, 78, 91, 114, 133, 143, 154, 182, 191, 209, 231, 247, 266, 273, 286, 382, 399, 418, 429, 462, 494, 546, 573, 627, 741, 798, 858, 1001, 1146, 1254, 1337, 1463, 1482, 1729, 2002, 2101, 2483, 2674, 2717, 2926, 3003, 3458, 3629, 4011, 4202, 4389, 4966, 5187, 5434, 6006, 6303, 7258, 7449, 8022, 8151, 8778, 10374, 10887, 12606, 14707, 14898, 16302, 17381, 19019, 21774, 25403, 27313, 29414, 34762, 38038, 39919, 44121, 47177, 50806, 52143, 54626, 57057, 76209, 79838, 81939, 88242, 94354, 104286, 114114, 119757, 141531, 152418, 163878, 191191, 239514, 279433, 283062, 330239, 382382, 518947, 558866, 573573, 660478, 838299, 990717, 1037894, 1147146, 1556841, 1676598, 1981434, 3113682, 3632629, 7265258, 10897887, 21795774]

約数ペア:

[(1, 21795774), (2, 10897887), (3, 7265258), (6, 3632629), (7, 3113682), (11, 1981434), (13, 1676598), (14, 1556841), (19, 1147146), (21, 1037894), (22, 990717), (26, 838299), (33, 660478), (38, 573573), (39, 558866), (42, 518947), (57, 382382), (66, 330239), (77, 283062), (78, 279433), (91, 239514), (114, 191191), (133, 163878), (143, 152418), (154, 141531), (182, 119757), (191, 114114), (209, 104286), (231, 94354), (247, 88242), (266, 81939), (273, 79838), (286, 76209), (382, 57057), (399, 54626), (418, 52143), (429, 50806), (462, 47177), (494, 44121), (546, 39919), (573, 38038), (627, 34762), (741, 29414), (798, 27313), (858, 25403), (1001, 21774), (1146, 19019), (1254, 17381), (1337, 16302), (1463, 14898), (1482, 14707), (1729, 12606), (2002, 10887), (2101, 10374), (2483, 8778), (2674, 8151), (2717, 8022), (2926, 7449), (3003, 7258), (3458, 6303), (3629, 6006), (4011, 5434), (4202, 5187), (4389, 4966)]