21618747

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1399}}^1$

素因数の和:1523

約数の個数: 24

約数和(自身を含む): 33415200

約数和(自身を除く): 11796453

約数列:

[1, 3, 9, 17, 51, 101, 153, 303, 909, 1399, 1717, 4197, 5151, 12591, 15453, 23783, 71349, 141299, 214047, 423897, 1271691, 2402083, 7206249, 21618747]

約数ペア:

[(1, 21618747), (3, 7206249), (9, 2402083), (17, 1271691), (51, 423897), (101, 214047), (153, 141299), (303, 71349), (909, 23783), (1399, 15453), (1717, 12591), (4197, 5151)]