21233072

素因数分解:

$2^4\times 7^3\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 80

約数和(自身を含む): 49550400

約数和(自身を除く): 28317328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 53, 56, 73, 98, 106, 112, 146, 196, 212, 292, 343, 371, 392, 424, 511, 584, 686, 742, 784, 848, 1022, 1168, 1372, 1484, 2044, 2597, 2744, 2968, 3577, 3869, 4088, 5194, 5488, 5936, 7154, 7738, 8176, 10388, 14308, 15476, 18179, 20776, 25039, 27083, 28616, 30952, 36358, 41552, 50078, 54166, 57232, 61904, 72716, 100156, 108332, 145432, 189581, 200312, 216664, 290864, 379162, 400624, 433328, 758324, 1327067, 1516648, 2654134, 3033296, 5308268, 10616536, 21233072]

約数ペア:

[(1, 21233072), (2, 10616536), (4, 5308268), (7, 3033296), (8, 2654134), (14, 1516648), (16, 1327067), (28, 758324), (49, 433328), (53, 400624), (56, 379162), (73, 290864), (98, 216664), (106, 200312), (112, 189581), (146, 145432), (196, 108332), (212, 100156), (292, 72716), (343, 61904), (371, 57232), (392, 54166), (424, 50078), (511, 41552), (584, 36358), (686, 30952), (742, 28616), (784, 27083), (848, 25039), (1022, 20776), (1168, 18179), (1372, 15476), (1484, 14308), (2044, 10388), (2597, 8176), (2744, 7738), (2968, 7154), (3577, 5936), (3869, 5488), (4088, 5194)]