21512652

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{5449}}^1$

素因数の和:5510

約数の個数: 48

約数和(自身を含む): 58598400

約数和(自身を除く): 37085748

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 3948, 5449, 10898, 16347, 21796, 32694, 38143, 65388, 76286, 114429, 152572, 228858, 256103, 457716, 512206, 768309, 1024412, 1536618, 1792721, 3073236, 3585442, 5378163, 7170884, 10756326, 21512652]

約数ペア:

[(1, 21512652), (2, 10756326), (3, 7170884), (4, 5378163), (6, 3585442), (7, 3073236), (12, 1792721), (14, 1536618), (21, 1024412), (28, 768309), (42, 512206), (47, 457716), (84, 256103), (94, 228858), (141, 152572), (188, 114429), (282, 76286), (329, 65388), (564, 38143), (658, 32694), (987, 21796), (1316, 16347), (1974, 10898), (3948, 5449)]