21950740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 58351104

約数和(自身を除く): 36400364

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 68, 70, 85, 92, 115, 119, 140, 161, 170, 230, 238, 322, 340, 391, 401, 460, 476, 595, 644, 782, 802, 805, 1190, 1564, 1604, 1610, 1955, 2005, 2380, 2737, 2807, 3220, 3910, 4010, 5474, 5614, 6817, 7820, 8020, 9223, 10948, 11228, 13634, 13685, 14035, 18446, 27268, 27370, 28070, 34085, 36892, 46115, 47719, 54740, 56140, 64561, 68170, 92230, 95438, 129122, 136340, 156791, 184460, 190876, 238595, 258244, 313582, 322805, 477190, 627164, 645610, 783955, 954380, 1097537, 1291220, 1567910, 2195074, 3135820, 4390148, 5487685, 10975370, 21950740]

約数ペア:

[(1, 21950740), (2, 10975370), (4, 5487685), (5, 4390148), (7, 3135820), (10, 2195074), (14, 1567910), (17, 1291220), (20, 1097537), (23, 954380), (28, 783955), (34, 645610), (35, 627164), (46, 477190), (68, 322805), (70, 313582), (85, 258244), (92, 238595), (115, 190876), (119, 184460), (140, 156791), (161, 136340), (170, 129122), (230, 95438), (238, 92230), (322, 68170), (340, 64561), (391, 56140), (401, 54740), (460, 47719), (476, 46115), (595, 36892), (644, 34085), (782, 28070), (802, 27370), (805, 27268), (1190, 18446), (1564, 14035), (1604, 13685), (1610, 13634), (1955, 11228), (2005, 10948), (2380, 9223), (2737, 8020), (2807, 7820), (3220, 6817), (3910, 5614), (4010, 5474)]