21842535

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{599}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 21703065

約数列:

[1, 3, 5, 11, 13, 15, 17, 33, 39, 51, 55, 65, 85, 143, 165, 187, 195, 221, 255, 429, 561, 599, 663, 715, 935, 1105, 1797, 2145, 2431, 2805, 2995, 3315, 6589, 7293, 7787, 8985, 10183, 12155, 19767, 23361, 30549, 32945, 36465, 38935, 50915, 85657, 98835, 112013, 116805, 132379, 152745, 256971, 336039, 397137, 428285, 560065, 661895, 1284855, 1456169, 1680195, 1985685, 4368507, 7280845, 21842535]

約数ペア:

[(1, 21842535), (3, 7280845), (5, 4368507), (11, 1985685), (13, 1680195), (15, 1456169), (17, 1284855), (33, 661895), (39, 560065), (51, 428285), (55, 397137), (65, 336039), (85, 256971), (143, 152745), (165, 132379), (187, 116805), (195, 112013), (221, 98835), (255, 85657), (429, 50915), (561, 38935), (599, 36465), (663, 32945), (715, 30549), (935, 23361), (1105, 19767), (1797, 12155), (2145, 10183), (2431, 8985), (2805, 7787), (2995, 7293), (3315, 6589)]