21216384

素因数分解:

$2^7\times 3^3\times 7^1\times {\mathrm{877}}^1$

素因数の和:907

約数の個数: 128

約数和(自身を含む): 71644800

約数和(自身を除く): 50428416

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 288, 336, 378, 384, 432, 448, 504, 576, 672, 756, 864, 877, 896, 1008, 1152, 1344, 1512, 1728, 1754, 2016, 2631, 2688, 3024, 3456, 3508, 4032, 5262, 6048, 6139, 7016, 7893, 8064, 10524, 12096, 12278, 14032, 15786, 18417, 21048, 23679, 24192, 24556, 28064, 31572, 36834, 42096, 47358, 49112, 55251, 56128, 63144, 73668, 84192, 94716, 98224, 110502, 112256, 126288, 147336, 165753, 168384, 189432, 196448, 221004, 252576, 294672, 331506, 336768, 378864, 392896, 442008, 505152, 589344, 663012, 757728, 785792, 884016, 1010304, 1178688, 1326024, 1515456, 1768032, 2357376, 2652048, 3030912, 3536064, 5304096, 7072128, 10608192, 21216384]

約数ペア:

[(1, 21216384), (2, 10608192), (3, 7072128), (4, 5304096), (6, 3536064), (7, 3030912), (8, 2652048), (9, 2357376), (12, 1768032), (14, 1515456), (16, 1326024), (18, 1178688), (21, 1010304), (24, 884016), (27, 785792), (28, 757728), (32, 663012), (36, 589344), (42, 505152), (48, 442008), (54, 392896), (56, 378864), (63, 336768), (64, 331506), (72, 294672), (84, 252576), (96, 221004), (108, 196448), (112, 189432), (126, 168384), (128, 165753), (144, 147336), (168, 126288), (189, 112256), (192, 110502), (216, 98224), (224, 94716), (252, 84192), (288, 73668), (336, 63144), (378, 56128), (384, 55251), (432, 49112), (448, 47358), (504, 42096), (576, 36834), (672, 31572), (756, 28064), (864, 24556), (877, 24192), (896, 23679), (1008, 21048), (1152, 18417), (1344, 15786), (1512, 14032), (1728, 12278), (1754, 12096), (2016, 10524), (2631, 8064), (2688, 7893), (3024, 7016), (3456, 6139), (3508, 6048), (4032, 5262)]