21822460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 50313312

約数和(自身を除く): 28490852

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 281, 353, 562, 706, 1124, 1405, 1412, 1765, 2810, 3091, 3530, 3883, 5620, 6182, 7060, 7766, 12364, 15455, 15532, 19415, 30910, 38830, 61820, 77660, 99193, 198386, 396772, 495965, 991930, 1091123, 1983860, 2182246, 4364492, 5455615, 10911230, 21822460]

約数ペア:

[(1, 21822460), (2, 10911230), (4, 5455615), (5, 4364492), (10, 2182246), (11, 1983860), (20, 1091123), (22, 991930), (44, 495965), (55, 396772), (110, 198386), (220, 99193), (281, 77660), (353, 61820), (562, 38830), (706, 30910), (1124, 19415), (1405, 15532), (1412, 15455), (1765, 12364), (2810, 7766), (3091, 7060), (3530, 6182), (3883, 5620)]