21873621

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{179}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 38223360

約数和(自身を除く): 16349739

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 179, 231, 253, 483, 529, 537, 759, 1253, 1587, 1771, 1969, 3703, 3759, 4117, 5313, 5819, 5907, 11109, 12351, 13783, 17457, 28819, 40733, 41349, 45287, 86457, 94691, 122199, 135861, 284073, 317009, 662837, 951027, 1041601, 1988511, 3124803, 7291207, 21873621]

約数ペア:

[(1, 21873621), (3, 7291207), (7, 3124803), (11, 1988511), (21, 1041601), (23, 951027), (33, 662837), (69, 317009), (77, 284073), (161, 135861), (179, 122199), (231, 94691), (253, 86457), (483, 45287), (529, 41349), (537, 40733), (759, 28819), (1253, 17457), (1587, 13783), (1771, 12351), (1969, 11109), (3703, 5907), (3759, 5819), (4117, 5313)]