21173900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19249}}^1$

素因数の和:19274

約数の個数: 36

約数和(自身を含む): 50127000

約数和(自身を除く): 28953100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 19249, 38498, 76996, 96245, 192490, 211739, 384980, 423478, 481225, 846956, 962450, 1058695, 1924900, 2117390, 4234780, 5293475, 10586950, 21173900]

約数ペア:

[(1, 21173900), (2, 10586950), (4, 5293475), (5, 4234780), (10, 2117390), (11, 1924900), (20, 1058695), (22, 962450), (25, 846956), (44, 481225), (50, 423478), (55, 384980), (100, 211739), (110, 192490), (220, 96245), (275, 76996), (550, 38498), (1100, 19249)]