20943065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1723}}^1$

素因数の和:1769

約数の個数: 32

約数和(自身を含む): 31280256

約数和(自身を除く): 10337191

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 715, 935, 1105, 1723, 2431, 8615, 12155, 18953, 22399, 29291, 94765, 111995, 146455, 246389, 322201, 380783, 1231945, 1611005, 1903915, 4188613, 20943065]

約数ペア:

[(1, 20943065), (5, 4188613), (11, 1903915), (13, 1611005), (17, 1231945), (55, 380783), (65, 322201), (85, 246389), (143, 146455), (187, 111995), (221, 94765), (715, 29291), (935, 22399), (1105, 18953), (1723, 12155), (2431, 8615)]