21298524

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{439}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 53813760

約数和(自身を除く): 32515236

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 311, 439, 622, 878, 933, 1244, 1317, 1756, 1866, 2634, 3732, 4043, 5268, 5707, 8086, 11414, 12129, 16172, 17121, 22828, 24258, 34242, 48516, 68484, 136529, 273058, 409587, 546116, 819174, 1638348, 1774877, 3549754, 5324631, 7099508, 10649262, 21298524]

約数ペア:

[(1, 21298524), (2, 10649262), (3, 7099508), (4, 5324631), (6, 3549754), (12, 1774877), (13, 1638348), (26, 819174), (39, 546116), (52, 409587), (78, 273058), (156, 136529), (311, 68484), (439, 48516), (622, 34242), (878, 24258), (933, 22828), (1244, 17121), (1317, 16172), (1756, 12129), (1866, 11414), (2634, 8086), (3732, 5707), (4043, 5268)]