20961187072

素因数分解:

$2^8\times 7^2\times {\mathrm{229}}^1\times {\mathrm{7297}}^1$

素因数の和:7556

約数の個数: 108

約数和(自身を含む): 48890834580

約数和(自身を除く): 27929647508

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 229, 256, 392, 448, 458, 784, 896, 916, 1568, 1603, 1792, 1832, 3136, 3206, 3664, 6272, 6412, 7297, 7328, 11221, 12544, 12824, 14594, 14656, 22442, 25648, 29188, 29312, 44884, 51079, 51296, 58376, 58624, 89768, 102158, 102592, 116752, 179536, 204316, 205184, 233504, 357553, 359072, 408632, 410368, 467008, 715106, 718144, 817264, 934016, 1430212, 1436288, 1634528, 1671013, 1868032, 2860424, 2872576, 3269056, 3342026, 5720848, 6538112, 6684052, 11441696, 11697091, 13076224, 13368104, 22883392, 23394182, 26736208, 45766784, 46788364, 53472416, 81879637, 91533568, 93576728, 106944832, 163759274, 187153456, 213889664, 327518548, 374306912, 427779328, 655037096, 748613824, 1310074192, 1497227648, 2620148384, 2994455296, 5240296768, 10480593536, 20961187072]

約数ペア:

[(1, 20961187072), (2, 10480593536), (4, 5240296768), (7, 2994455296), (8, 2620148384), (14, 1497227648), (16, 1310074192), (28, 748613824), (32, 655037096), (49, 427779328), (56, 374306912), (64, 327518548), (98, 213889664), (112, 187153456), (128, 163759274), (196, 106944832), (224, 93576728), (229, 91533568), (256, 81879637), (392, 53472416), (448, 46788364), (458, 45766784), (784, 26736208), (896, 23394182), (916, 22883392), (1568, 13368104), (1603, 13076224), (1792, 11697091), (1832, 11441696), (3136, 6684052), (3206, 6538112), (3664, 5720848), (6272, 3342026), (6412, 3269056), (7297, 2872576), (7328, 2860424), (11221, 1868032), (12544, 1671013), (12824, 1634528), (14594, 1436288), (14656, 1430212), (22442, 934016), (25648, 817264), (29188, 718144), (29312, 715106), (44884, 467008), (51079, 410368), (51296, 408632), (58376, 359072), (58624, 357553), (89768, 233504), (102158, 205184), (102592, 204316), (116752, 179536)]