1721313146

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:699

約数の個数: 64

約数和(自身を含む): 3145236480

約数和(自身を除く): 1423923334

約数列:

[1, 2, 7, 14, 23, 46, 79, 157, 158, 161, 314, 322, 431, 553, 862, 1099, 1106, 1817, 2198, 3017, 3611, 3634, 6034, 7222, 9913, 12403, 12719, 19826, 24806, 25277, 25438, 34049, 50554, 67667, 68098, 69391, 86821, 135334, 138782, 173642, 238343, 285269, 473669, 476686, 570538, 783127, 947338, 1556341, 1566254, 1996883, 3112682, 3993766, 5345693, 5481889, 10691386, 10894387, 10963778, 21788774, 37419851, 74839702, 122950939, 245901878, 860656573, 1721313146]

約数ペア:

[(1, 1721313146), (2, 860656573), (7, 245901878), (14, 122950939), (23, 74839702), (46, 37419851), (79, 21788774), (157, 10963778), (158, 10894387), (161, 10691386), (314, 5481889), (322, 5345693), (431, 3993766), (553, 3112682), (862, 1996883), (1099, 1566254), (1106, 1556341), (1817, 947338), (2198, 783127), (3017, 570538), (3611, 476686), (3634, 473669), (6034, 285269), (7222, 238343), (9913, 173642), (12403, 138782), (12719, 135334), (19826, 86821), (24806, 69391), (25277, 68098), (25438, 67667), (34049, 50554)]