20980992

素因数分解:

$2^8\times 3^1\times {\mathrm{17}}^1\times {\mathrm{1607}}^1$

素因数の和:1643

約数の個数: 72

約数和(自身を含む): 59161536

約数和(自身を除く): 38180544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 64, 68, 96, 102, 128, 136, 192, 204, 256, 272, 384, 408, 544, 768, 816, 1088, 1607, 1632, 2176, 3214, 3264, 4352, 4821, 6428, 6528, 9642, 12856, 13056, 19284, 25712, 27319, 38568, 51424, 54638, 77136, 81957, 102848, 109276, 154272, 163914, 205696, 218552, 308544, 327828, 411392, 437104, 617088, 655656, 874208, 1234176, 1311312, 1748416, 2622624, 3496832, 5245248, 6993664, 10490496, 20980992]

約数ペア:

[(1, 20980992), (2, 10490496), (3, 6993664), (4, 5245248), (6, 3496832), (8, 2622624), (12, 1748416), (16, 1311312), (17, 1234176), (24, 874208), (32, 655656), (34, 617088), (48, 437104), (51, 411392), (64, 327828), (68, 308544), (96, 218552), (102, 205696), (128, 163914), (136, 154272), (192, 109276), (204, 102848), (256, 81957), (272, 77136), (384, 54638), (408, 51424), (544, 38568), (768, 27319), (816, 25712), (1088, 19284), (1607, 13056), (1632, 12856), (2176, 9642), (3214, 6528), (3264, 6428), (4352, 4821)]