21291564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{5393}}^1$

素因数の和:5454

約数の個数: 48

約数和(自身を含む): 57996288

約数和(自身を除く): 36704724

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, 5393, 10786, 16179, 21572, 32358, 37751, 64716, 75502, 113253, 151004, 226506, 253471, 453012, 506942, 760413, 1013884, 1520826, 1774297, 3041652, 3548594, 5322891, 7097188, 10645782, 21291564]

約数ペア:

[(1, 21291564), (2, 10645782), (3, 7097188), (4, 5322891), (6, 3548594), (7, 3041652), (12, 1774297), (14, 1520826), (21, 1013884), (28, 760413), (42, 506942), (47, 453012), (84, 253471), (94, 226506), (141, 151004), (188, 113253), (282, 75502), (329, 64716), (564, 37751), (658, 32358), (987, 21572), (1316, 16179), (1974, 10786), (3948, 5393)]