21275172

素因数分解:

$2^2\times 3^2\times {\mathrm{557}}^1\times {\mathrm{1061}}^1$

素因数の和:1628

約数の個数: 36

約数和(自身を含む): 53926236

約数和(自身を除く): 32651064

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 557, 1061, 1114, 1671, 2122, 2228, 3183, 3342, 4244, 5013, 6366, 6684, 9549, 10026, 12732, 19098, 20052, 38196, 590977, 1181954, 1772931, 2363908, 3545862, 5318793, 7091724, 10637586, 21275172]

約数ペア:

[(1, 21275172), (2, 10637586), (3, 7091724), (4, 5318793), (6, 3545862), (9, 2363908), (12, 1772931), (18, 1181954), (36, 590977), (557, 38196), (1061, 20052), (1114, 19098), (1671, 12732), (2122, 10026), (2228, 9549), (3183, 6684), (3342, 6366), (4244, 5013)]