21628386

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5437}}^1$

素因数の和:5475

約数の個数: 48

約数和(自身を含む): 53444664

約数和(自身を除く): 31816278

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 5437, 10874, 16311, 32622, 48933, 70681, 92429, 97866, 141362, 184858, 212043, 277287, 424086, 554574, 636129, 831861, 1201577, 1272258, 1663722, 2403154, 3604731, 7209462, 10814193, 21628386]

約数ペア:

[(1, 21628386), (2, 10814193), (3, 7209462), (6, 3604731), (9, 2403154), (13, 1663722), (17, 1272258), (18, 1201577), (26, 831861), (34, 636129), (39, 554574), (51, 424086), (78, 277287), (102, 212043), (117, 184858), (153, 141362), (221, 97866), (234, 92429), (306, 70681), (442, 48933), (663, 32622), (1326, 16311), (1989, 10874), (3978, 5437)]