21813568

素因数分解:

$2^6\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:144

約数の個数: 112

約数和(自身を含む): 54132480

約数和(自身を除く): 32318912

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 29, 32, 46, 56, 58, 64, 73, 92, 112, 116, 146, 161, 184, 203, 224, 232, 292, 322, 368, 406, 448, 464, 511, 584, 644, 667, 736, 812, 928, 1022, 1168, 1288, 1334, 1472, 1624, 1679, 1856, 2044, 2117, 2336, 2576, 2668, 3248, 3358, 4088, 4234, 4669, 4672, 5152, 5336, 6496, 6716, 8176, 8468, 9338, 10304, 10672, 11753, 12992, 13432, 14819, 16352, 16936, 18676, 21344, 23506, 26864, 29638, 32704, 33872, 37352, 42688, 47012, 48691, 53728, 59276, 67744, 74704, 94024, 97382, 107456, 118552, 135488, 149408, 188048, 194764, 237104, 298816, 340837, 376096, 389528, 474208, 681674, 752192, 779056, 948416, 1363348, 1558112, 2726696, 3116224, 5453392, 10906784, 21813568]

約数ペア:

[(1, 21813568), (2, 10906784), (4, 5453392), (7, 3116224), (8, 2726696), (14, 1558112), (16, 1363348), (23, 948416), (28, 779056), (29, 752192), (32, 681674), (46, 474208), (56, 389528), (58, 376096), (64, 340837), (73, 298816), (92, 237104), (112, 194764), (116, 188048), (146, 149408), (161, 135488), (184, 118552), (203, 107456), (224, 97382), (232, 94024), (292, 74704), (322, 67744), (368, 59276), (406, 53728), (448, 48691), (464, 47012), (511, 42688), (584, 37352), (644, 33872), (667, 32704), (736, 29638), (812, 26864), (928, 23506), (1022, 21344), (1168, 18676), (1288, 16936), (1334, 16352), (1472, 14819), (1624, 13432), (1679, 12992), (1856, 11753), (2044, 10672), (2117, 10304), (2336, 9338), (2576, 8468), (2668, 8176), (3248, 6716), (3358, 6496), (4088, 5336), (4234, 5152), (4669, 4672)]