21148395

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 35622720

約数和(自身を除く): 14474325

約数列:

[1, 3, 5, 15, 29, 61, 87, 145, 183, 305, 435, 797, 915, 1769, 2391, 3985, 5307, 8845, 11955, 23113, 26535, 48617, 69339, 115565, 145851, 243085, 346695, 729255, 1409893, 4229679, 7049465, 21148395]

約数ペア:

[(1, 21148395), (3, 7049465), (5, 4229679), (15, 1409893), (29, 729255), (61, 346695), (87, 243085), (145, 145851), (183, 115565), (305, 69339), (435, 48617), (797, 26535), (915, 23113), (1769, 11955), (2391, 8845), (3985, 5307)]