20111890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87443}}^1$

素因数の和:87473

約数の個数: 16

約数和(自身を含む): 37775808

約数和(自身を除く): 17663918

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 87443, 174886, 437215, 874430, 2011189, 4022378, 10055945, 20111890]

約数ペア:

[(1, 20111890), (2, 10055945), (5, 4022378), (10, 2011189), (23, 874430), (46, 437215), (115, 174886), (230, 87443)]