21442165

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 7386635

約数列:

[1, 5, 19, 29, 43, 95, 145, 181, 215, 551, 817, 905, 1247, 2755, 3439, 4085, 5249, 6235, 7783, 17195, 23693, 26245, 38915, 99731, 118465, 147877, 225707, 498655, 739385, 1128535, 4288433, 21442165]

約数ペア:

[(1, 21442165), (5, 4288433), (19, 1128535), (29, 739385), (43, 498655), (95, 225707), (145, 147877), (181, 118465), (215, 99731), (551, 38915), (817, 26245), (905, 23693), (1247, 17195), (2755, 7783), (3439, 6235), (4085, 5249)]