21508704

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 144

約数和(自身を含む): 71705088

約数和(自身を除く): 50196384

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 47, 48, 56, 63, 72, 84, 94, 96, 112, 126, 141, 144, 168, 188, 224, 227, 252, 282, 288, 329, 336, 376, 423, 454, 504, 564, 658, 672, 681, 752, 846, 908, 987, 1008, 1128, 1316, 1362, 1504, 1589, 1692, 1816, 1974, 2016, 2043, 2256, 2632, 2724, 2961, 3178, 3384, 3632, 3948, 4086, 4512, 4767, 5264, 5448, 5922, 6356, 6768, 7264, 7896, 8172, 9534, 10528, 10669, 10896, 11844, 12712, 13536, 14301, 15792, 16344, 19068, 21338, 21792, 23688, 25424, 28602, 31584, 32007, 32688, 38136, 42676, 47376, 50848, 57204, 64014, 65376, 74683, 76272, 85352, 94752, 96021, 114408, 128028, 149366, 152544, 170704, 192042, 224049, 228816, 256056, 298732, 341408, 384084, 448098, 457632, 512112, 597464, 672147, 768168, 896196, 1024224, 1194928, 1344294, 1536336, 1792392, 2389856, 2688588, 3072672, 3584784, 5377176, 7169568, 10754352, 21508704]

約数ペア:

[(1, 21508704), (2, 10754352), (3, 7169568), (4, 5377176), (6, 3584784), (7, 3072672), (8, 2688588), (9, 2389856), (12, 1792392), (14, 1536336), (16, 1344294), (18, 1194928), (21, 1024224), (24, 896196), (28, 768168), (32, 672147), (36, 597464), (42, 512112), (47, 457632), (48, 448098), (56, 384084), (63, 341408), (72, 298732), (84, 256056), (94, 228816), (96, 224049), (112, 192042), (126, 170704), (141, 152544), (144, 149366), (168, 128028), (188, 114408), (224, 96021), (227, 94752), (252, 85352), (282, 76272), (288, 74683), (329, 65376), (336, 64014), (376, 57204), (423, 50848), (454, 47376), (504, 42676), (564, 38136), (658, 32688), (672, 32007), (681, 31584), (752, 28602), (846, 25424), (908, 23688), (987, 21792), (1008, 21338), (1128, 19068), (1316, 16344), (1362, 15792), (1504, 14301), (1589, 13536), (1692, 12712), (1816, 11844), (1974, 10896), (2016, 10669), (2043, 10528), (2256, 9534), (2632, 8172), (2724, 7896), (2961, 7264), (3178, 6768), (3384, 6356), (3632, 5922), (3948, 5448), (4086, 5264), (4512, 4767)]