21074356

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{3923}}^1$

素因数の和:4023

約数の個数: 24

約数和(自身を含む): 39553920

約数和(自身を除く): 18479564

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 316, 1343, 2686, 3923, 5372, 7846, 15692, 66691, 133382, 266764, 309917, 619834, 1239668, 5268589, 10537178, 21074356]

約数ペア:

[(1, 21074356), (2, 10537178), (4, 5268589), (17, 1239668), (34, 619834), (68, 309917), (79, 266764), (158, 133382), (316, 66691), (1343, 15692), (2686, 7846), (3923, 5372)]