21204988

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1733}}^1$

素因数の和:1786

約数の個数: 48

約数和(自身を含む): 46609920

約数和(自身を除く): 25404932

約数列:

[1, 2, 4, 7, 14, 19, 23, 28, 38, 46, 76, 92, 133, 161, 266, 322, 437, 532, 644, 874, 1733, 1748, 3059, 3466, 6118, 6932, 12131, 12236, 24262, 32927, 39859, 48524, 65854, 79718, 131708, 159436, 230489, 279013, 460978, 558026, 757321, 921956, 1116052, 1514642, 3029284, 5301247, 10602494, 21204988]

約数ペア:

[(1, 21204988), (2, 10602494), (4, 5301247), (7, 3029284), (14, 1514642), (19, 1116052), (23, 921956), (28, 757321), (38, 558026), (46, 460978), (76, 279013), (92, 230489), (133, 159436), (161, 131708), (266, 79718), (322, 65854), (437, 48524), (532, 39859), (644, 32927), (874, 24262), (1733, 12236), (1748, 12131), (3059, 6932), (3466, 6118)]