21285530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 47941632

約数和(自身を除く): 26656102

約数列:

[1, 2, 5, 7, 10, 14, 17, 31, 34, 35, 62, 70, 85, 119, 155, 170, 217, 238, 310, 434, 527, 577, 595, 1054, 1085, 1154, 1190, 2170, 2635, 2885, 3689, 4039, 5270, 5770, 7378, 8078, 9809, 17887, 18445, 19618, 20195, 35774, 36890, 40390, 49045, 68663, 89435, 98090, 125209, 137326, 178870, 250418, 304079, 343315, 608158, 626045, 686630, 1252090, 1520395, 2128553, 3040790, 4257106, 10642765, 21285530]

約数ペア:

[(1, 21285530), (2, 10642765), (5, 4257106), (7, 3040790), (10, 2128553), (14, 1520395), (17, 1252090), (31, 686630), (34, 626045), (35, 608158), (62, 343315), (70, 304079), (85, 250418), (119, 178870), (155, 137326), (170, 125209), (217, 98090), (238, 89435), (310, 68663), (434, 49045), (527, 40390), (577, 36890), (595, 35774), (1054, 20195), (1085, 19618), (1154, 18445), (1190, 17887), (2170, 9809), (2635, 8078), (2885, 7378), (3689, 5770), (4039, 5270)]