21311433

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 37477440

約数和(自身を除く): 16166007

約数列:

[1, 3, 9, 11, 13, 29, 33, 39, 87, 99, 117, 143, 261, 319, 377, 429, 571, 957, 1131, 1287, 1713, 2871, 3393, 4147, 5139, 6281, 7423, 12441, 16559, 18843, 22269, 37323, 49677, 56529, 66807, 81653, 149031, 182149, 215267, 244959, 546447, 645801, 734877, 1639341, 1937403, 2367937, 7103811, 21311433]

約数ペア:

[(1, 21311433), (3, 7103811), (9, 2367937), (11, 1937403), (13, 1639341), (29, 734877), (33, 645801), (39, 546447), (87, 244959), (99, 215267), (117, 182149), (143, 149031), (261, 81653), (319, 66807), (377, 56529), (429, 49677), (571, 37323), (957, 22269), (1131, 18843), (1287, 16559), (1713, 12441), (2871, 7423), (3393, 6281), (4147, 5139)]