21525273

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 39312000

約数和(自身を除く): 17786727

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 89, 99, 231, 267, 349, 623, 693, 801, 979, 1047, 1869, 2443, 2937, 3141, 3839, 5607, 6853, 7329, 8811, 11517, 20559, 21987, 26873, 31061, 34551, 61677, 80619, 93183, 217427, 241857, 279549, 341671, 652281, 1025013, 1956843, 2391697, 3075039, 7175091, 21525273]

約数ペア:

[(1, 21525273), (3, 7175091), (7, 3075039), (9, 2391697), (11, 1956843), (21, 1025013), (33, 652281), (63, 341671), (77, 279549), (89, 241857), (99, 217427), (231, 93183), (267, 80619), (349, 61677), (623, 34551), (693, 31061), (801, 26873), (979, 21987), (1047, 20559), (1869, 11517), (2443, 8811), (2937, 7329), (3141, 6853), (3839, 5607)]