21185670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1493}}^1$

素因数の和:1557

約数の個数: 64

約数和(自身を含む): 56795904

約数和(自身を除く): 35610234

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 43, 55, 66, 86, 110, 129, 165, 215, 258, 330, 430, 473, 645, 946, 1290, 1419, 1493, 2365, 2838, 2986, 4479, 4730, 7095, 7465, 8958, 14190, 14930, 16423, 22395, 32846, 44790, 49269, 64199, 82115, 98538, 128398, 164230, 192597, 246345, 320995, 385194, 492690, 641990, 706189, 962985, 1412378, 1925970, 2118567, 3530945, 4237134, 7061890, 10592835, 21185670]

約数ペア:

[(1, 21185670), (2, 10592835), (3, 7061890), (5, 4237134), (6, 3530945), (10, 2118567), (11, 1925970), (15, 1412378), (22, 962985), (30, 706189), (33, 641990), (43, 492690), (55, 385194), (66, 320995), (86, 246345), (110, 192597), (129, 164230), (165, 128398), (215, 98538), (258, 82115), (330, 64199), (430, 49269), (473, 44790), (645, 32846), (946, 22395), (1290, 16423), (1419, 14930), (1493, 14190), (2365, 8958), (2838, 7465), (2986, 7095), (4479, 4730)]