21000724755

素因数分解:

$3^1\times 5^1\times {\mathrm{33013}}^1\times {\mathrm{42409}}^1$

素因数の和:75430

約数の個数: 16

約数和(自身を含む): 33602969760

約数和(自身を除く): 12602245005

約数列:

[1, 3, 5, 15, 33013, 42409, 99039, 127227, 165065, 212045, 495195, 636135, 1400048317, 4200144951, 7000241585, 21000724755]

約数ペア:

[(1, 21000724755), (3, 7000241585), (5, 4200144951), (15, 1400048317), (33013, 636135), (42409, 495195), (99039, 212045), (127227, 165065)]