21427488

素因数分解:

$2^5\times 3^2\times {\mathrm{47}}^1\times {\mathrm{1583}}^1$

素因数の和:1646

約数の個数: 72

約数和(自身を含む): 62270208

約数和(自身を除く): 40842720

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 47, 48, 72, 94, 96, 141, 144, 188, 282, 288, 376, 423, 564, 752, 846, 1128, 1504, 1583, 1692, 2256, 3166, 3384, 4512, 4749, 6332, 6768, 9498, 12664, 13536, 14247, 18996, 25328, 28494, 37992, 50656, 56988, 74401, 75984, 113976, 148802, 151968, 223203, 227952, 297604, 446406, 455904, 595208, 669609, 892812, 1190416, 1339218, 1785624, 2380832, 2678436, 3571248, 5356872, 7142496, 10713744, 21427488]

約数ペア:

[(1, 21427488), (2, 10713744), (3, 7142496), (4, 5356872), (6, 3571248), (8, 2678436), (9, 2380832), (12, 1785624), (16, 1339218), (18, 1190416), (24, 892812), (32, 669609), (36, 595208), (47, 455904), (48, 446406), (72, 297604), (94, 227952), (96, 223203), (141, 151968), (144, 148802), (188, 113976), (282, 75984), (288, 74401), (376, 56988), (423, 50656), (564, 37992), (752, 28494), (846, 25328), (1128, 18996), (1504, 14247), (1583, 13536), (1692, 12664), (2256, 9498), (3166, 6768), (3384, 6332), (4512, 4749)]