21908754

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 96

約数和(自身を含む): 57507840

約数和(自身を除く): 35599086

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 71, 79, 93, 126, 142, 158, 186, 213, 217, 237, 279, 426, 434, 474, 497, 553, 558, 639, 651, 711, 994, 1106, 1278, 1302, 1422, 1491, 1659, 1953, 2201, 2449, 2982, 3318, 3906, 4402, 4473, 4898, 4977, 5609, 6603, 7347, 8946, 9954, 11218, 13206, 14694, 15407, 16827, 17143, 19809, 22041, 30814, 33654, 34286, 39263, 39618, 44082, 46221, 50481, 51429, 78526, 92442, 100962, 102858, 117789, 138663, 154287, 173879, 235578, 277326, 308574, 347758, 353367, 521637, 706734, 1043274, 1217153, 1564911, 2434306, 3129822, 3651459, 7302918, 10954377, 21908754]

約数ペア:

[(1, 21908754), (2, 10954377), (3, 7302918), (6, 3651459), (7, 3129822), (9, 2434306), (14, 1564911), (18, 1217153), (21, 1043274), (31, 706734), (42, 521637), (62, 353367), (63, 347758), (71, 308574), (79, 277326), (93, 235578), (126, 173879), (142, 154287), (158, 138663), (186, 117789), (213, 102858), (217, 100962), (237, 92442), (279, 78526), (426, 51429), (434, 50481), (474, 46221), (497, 44082), (553, 39618), (558, 39263), (639, 34286), (651, 33654), (711, 30814), (994, 22041), (1106, 19809), (1278, 17143), (1302, 16827), (1422, 15407), (1491, 14694), (1659, 13206), (1953, 11218), (2201, 9954), (2449, 8946), (2982, 7347), (3318, 6603), (3906, 5609), (4402, 4977), (4473, 4898)]