21335556

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 58705920

約数和(自身を除く): 37370364

約数列:

[1, 2, 3, 4, 6, 11, 12, 19, 22, 33, 38, 44, 47, 57, 66, 76, 94, 114, 132, 141, 181, 188, 209, 228, 282, 362, 418, 517, 543, 564, 627, 724, 836, 893, 1034, 1086, 1254, 1551, 1786, 1991, 2068, 2172, 2508, 2679, 3102, 3439, 3572, 3982, 5358, 5973, 6204, 6878, 7964, 8507, 9823, 10317, 10716, 11946, 13756, 17014, 19646, 20634, 23892, 25521, 29469, 34028, 37829, 39292, 41268, 51042, 58938, 75658, 93577, 102084, 113487, 117876, 151316, 161633, 187154, 226974, 280731, 323266, 374308, 453948, 484899, 561462, 646532, 969798, 1122924, 1777963, 1939596, 3555926, 5333889, 7111852, 10667778, 21335556]

約数ペア:

[(1, 21335556), (2, 10667778), (3, 7111852), (4, 5333889), (6, 3555926), (11, 1939596), (12, 1777963), (19, 1122924), (22, 969798), (33, 646532), (38, 561462), (44, 484899), (47, 453948), (57, 374308), (66, 323266), (76, 280731), (94, 226974), (114, 187154), (132, 161633), (141, 151316), (181, 117876), (188, 113487), (209, 102084), (228, 93577), (282, 75658), (362, 58938), (418, 51042), (517, 41268), (543, 39292), (564, 37829), (627, 34028), (724, 29469), (836, 25521), (893, 23892), (1034, 20634), (1086, 19646), (1254, 17014), (1551, 13756), (1786, 11946), (1991, 10716), (2068, 10317), (2172, 9823), (2508, 8507), (2679, 7964), (3102, 6878), (3439, 6204), (3572, 5973), (3982, 5358)]