21831852

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{347}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 59984064

約数和(自身を除く): 38152212

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 107, 147, 196, 214, 294, 321, 347, 428, 588, 642, 694, 749, 1041, 1284, 1388, 1498, 2082, 2247, 2429, 2996, 4164, 4494, 4858, 5243, 7287, 8988, 9716, 10486, 14574, 15729, 17003, 20972, 29148, 31458, 34006, 37129, 51009, 62916, 68012, 74258, 102018, 111387, 148516, 204036, 222774, 259903, 445548, 519806, 779709, 1039612, 1559418, 1819321, 3118836, 3638642, 5457963, 7277284, 10915926, 21831852]

約数ペア:

[(1, 21831852), (2, 10915926), (3, 7277284), (4, 5457963), (6, 3638642), (7, 3118836), (12, 1819321), (14, 1559418), (21, 1039612), (28, 779709), (42, 519806), (49, 445548), (84, 259903), (98, 222774), (107, 204036), (147, 148516), (196, 111387), (214, 102018), (294, 74258), (321, 68012), (347, 62916), (428, 51009), (588, 37129), (642, 34006), (694, 31458), (749, 29148), (1041, 20972), (1284, 17003), (1388, 15729), (1498, 14574), (2082, 10486), (2247, 9716), (2429, 8988), (2996, 7287), (4164, 5243), (4494, 4858)]