18595815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 17899545

約数列:

[1, 3, 5, 7, 15, 21, 29, 31, 35, 87, 93, 105, 145, 155, 197, 203, 217, 435, 465, 591, 609, 651, 899, 985, 1015, 1085, 1379, 2697, 2955, 3045, 3255, 4137, 4495, 5713, 6107, 6293, 6895, 13485, 17139, 18321, 18879, 20685, 28565, 30535, 31465, 39991, 42749, 85695, 91605, 94395, 119973, 128247, 177103, 199955, 213745, 531309, 599865, 641235, 885515, 1239721, 2656545, 3719163, 6198605, 18595815]

約数ペア:

[(1, 18595815), (3, 6198605), (5, 3719163), (7, 2656545), (15, 1239721), (21, 885515), (29, 641235), (31, 599865), (35, 531309), (87, 213745), (93, 199955), (105, 177103), (145, 128247), (155, 119973), (197, 94395), (203, 91605), (217, 85695), (435, 42749), (465, 39991), (591, 31465), (609, 30535), (651, 28565), (899, 20685), (985, 18879), (1015, 18321), (1085, 17139), (1379, 13485), (2697, 6895), (2955, 6293), (3045, 6107), (3255, 5713), (4137, 4495)]