21420882

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{929}}^1$

素因数の和:1008

約数の個数: 64

約数和(自身を含む): 55353600

約数和(自身を除く): 33932718

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 61, 63, 122, 126, 183, 189, 366, 378, 427, 549, 854, 929, 1098, 1281, 1647, 1858, 2562, 2787, 3294, 3843, 5574, 6503, 7686, 8361, 11529, 13006, 16722, 19509, 23058, 25083, 39018, 50166, 56669, 58527, 113338, 117054, 170007, 175581, 340014, 351162, 396683, 510021, 793366, 1020042, 1190049, 1530063, 2380098, 3060126, 3570147, 7140294, 10710441, 21420882]

約数ペア:

[(1, 21420882), (2, 10710441), (3, 7140294), (6, 3570147), (7, 3060126), (9, 2380098), (14, 1530063), (18, 1190049), (21, 1020042), (27, 793366), (42, 510021), (54, 396683), (61, 351162), (63, 340014), (122, 175581), (126, 170007), (183, 117054), (189, 113338), (366, 58527), (378, 56669), (427, 50166), (549, 39018), (854, 25083), (929, 23058), (1098, 19509), (1281, 16722), (1647, 13006), (1858, 11529), (2562, 8361), (2787, 7686), (3294, 6503), (3843, 5574)]