21652736

素因数分解:

$2^8\times 7^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 50723904

約数和(自身を除く): 29071168

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 281, 301, 344, 448, 562, 602, 688, 896, 1124, 1204, 1376, 1792, 1967, 2248, 2408, 2752, 3934, 4496, 4816, 5504, 7868, 8992, 9632, 11008, 12083, 15736, 17984, 19264, 24166, 31472, 35968, 38528, 48332, 62944, 71936, 77056, 84581, 96664, 125888, 169162, 193328, 251776, 338324, 386656, 503552, 676648, 773312, 1353296, 1546624, 2706592, 3093248, 5413184, 10826368, 21652736]

約数ペア:

[(1, 21652736), (2, 10826368), (4, 5413184), (7, 3093248), (8, 2706592), (14, 1546624), (16, 1353296), (28, 773312), (32, 676648), (43, 503552), (56, 386656), (64, 338324), (86, 251776), (112, 193328), (128, 169162), (172, 125888), (224, 96664), (256, 84581), (281, 77056), (301, 71936), (344, 62944), (448, 48332), (562, 38528), (602, 35968), (688, 31472), (896, 24166), (1124, 19264), (1204, 17984), (1376, 15736), (1792, 12083), (1967, 11008), (2248, 9632), (2408, 8992), (2752, 7868), (3934, 5504), (4496, 4816)]