21703460

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 47369280

約数和(自身を除く): 25665820

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 139, 148, 185, 211, 278, 370, 422, 556, 695, 740, 844, 1055, 1390, 2110, 2780, 4220, 5143, 7807, 10286, 15614, 20572, 25715, 29329, 31228, 39035, 51430, 58658, 78070, 102860, 117316, 146645, 156140, 293290, 586580, 1085173, 2170346, 4340692, 5425865, 10851730, 21703460]

約数ペア:

[(1, 21703460), (2, 10851730), (4, 5425865), (5, 4340692), (10, 2170346), (20, 1085173), (37, 586580), (74, 293290), (139, 156140), (148, 146645), (185, 117316), (211, 102860), (278, 78070), (370, 58658), (422, 51430), (556, 39035), (695, 31228), (740, 29329), (844, 25715), (1055, 20572), (1390, 15614), (2110, 10286), (2780, 7807), (4220, 5143)]