21391632

素因数分解:

$2^4\times 3^2\times {\mathrm{149}}^1\times {\mathrm{997}}^1$

素因数の和:1160

約数の個数: 60

約数和(自身を含む): 60329100

約数和(自身を除く): 38937468

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 149, 298, 447, 596, 894, 997, 1192, 1341, 1788, 1994, 2384, 2682, 2991, 3576, 3988, 5364, 5982, 7152, 7976, 8973, 10728, 11964, 15952, 17946, 21456, 23928, 35892, 47856, 71784, 143568, 148553, 297106, 445659, 594212, 891318, 1188424, 1336977, 1782636, 2376848, 2673954, 3565272, 5347908, 7130544, 10695816, 21391632]

約数ペア:

[(1, 21391632), (2, 10695816), (3, 7130544), (4, 5347908), (6, 3565272), (8, 2673954), (9, 2376848), (12, 1782636), (16, 1336977), (18, 1188424), (24, 891318), (36, 594212), (48, 445659), (72, 297106), (144, 148553), (149, 143568), (298, 71784), (447, 47856), (596, 35892), (894, 23928), (997, 21456), (1192, 17946), (1341, 15952), (1788, 11964), (1994, 10728), (2384, 8973), (2682, 7976), (2991, 7152), (3576, 5982), (3988, 5364)]