21447828

素因数分解:

$2^2\times 3^4\times {\mathrm{53}}^1\times {\mathrm{1249}}^1$

素因数の和:1318

約数の個数: 60

約数和(自身を含む): 57172500

約数和(自身を除く): 35724672

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 53, 54, 81, 106, 108, 159, 162, 212, 318, 324, 477, 636, 954, 1249, 1431, 1908, 2498, 2862, 3747, 4293, 4996, 5724, 7494, 8586, 11241, 14988, 17172, 22482, 33723, 44964, 66197, 67446, 101169, 132394, 134892, 198591, 202338, 264788, 397182, 404676, 595773, 794364, 1191546, 1787319, 2383092, 3574638, 5361957, 7149276, 10723914, 21447828]

約数ペア:

[(1, 21447828), (2, 10723914), (3, 7149276), (4, 5361957), (6, 3574638), (9, 2383092), (12, 1787319), (18, 1191546), (27, 794364), (36, 595773), (53, 404676), (54, 397182), (81, 264788), (106, 202338), (108, 198591), (159, 134892), (162, 132394), (212, 101169), (318, 67446), (324, 66197), (477, 44964), (636, 33723), (954, 22482), (1249, 17172), (1431, 14988), (1908, 11241), (2498, 8586), (2862, 7494), (3747, 5724), (4293, 4996)]