19712945

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4733}}^1$

素因数の和:4769

約数の個数: 24

約数和(自身を含む): 29142504

約数和(自身を除く): 9429559

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 4733, 23665, 33131, 80461, 165655, 231917, 402305, 563227, 1159585, 2816135, 3942589, 19712945]

約数ペア:

[(1, 19712945), (5, 3942589), (7, 2816135), (17, 1159585), (35, 563227), (49, 402305), (85, 231917), (119, 165655), (245, 80461), (595, 33131), (833, 23665), (4165, 4733)]