21000451584

素因数分解:

$2^9\times 3^1\times 7^1\times {\mathrm{1953167}}^1$

素因数の和:1953195

約数の個数: 80

約数和(自身を含む): 63938907648

約数和(自身を除く): 42938456064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 256, 336, 384, 448, 512, 672, 768, 896, 1344, 1536, 1792, 2688, 3584, 5376, 10752, 1953167, 3906334, 5859501, 7812668, 11719002, 13672169, 15625336, 23438004, 27344338, 31250672, 41016507, 46876008, 54688676, 62501344, 82033014, 93752016, 109377352, 125002688, 164066028, 187504032, 218754704, 250005376, 328132056, 375008064, 437509408, 500010752, 656264112, 750016128, 875018816, 1000021504, 1312528224, 1500032256, 1750037632, 2625056448, 3000064512, 3500075264, 5250112896, 7000150528, 10500225792, 21000451584]

約数ペア:

[(1, 21000451584), (2, 10500225792), (3, 7000150528), (4, 5250112896), (6, 3500075264), (7, 3000064512), (8, 2625056448), (12, 1750037632), (14, 1500032256), (16, 1312528224), (21, 1000021504), (24, 875018816), (28, 750016128), (32, 656264112), (42, 500010752), (48, 437509408), (56, 375008064), (64, 328132056), (84, 250005376), (96, 218754704), (112, 187504032), (128, 164066028), (168, 125002688), (192, 109377352), (224, 93752016), (256, 82033014), (336, 62501344), (384, 54688676), (448, 46876008), (512, 41016507), (672, 31250672), (768, 27344338), (896, 23438004), (1344, 15625336), (1536, 13672169), (1792, 11719002), (2688, 7812668), (3584, 5859501), (5376, 3906334), (10752, 1953167)]