21030208

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 56

約数和(自身を含む): 43781472

約数和(自身を除く): 22751264

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 83, 107, 148, 166, 214, 296, 332, 428, 592, 664, 856, 1184, 1328, 1712, 2368, 2656, 3071, 3424, 3959, 5312, 6142, 6848, 7918, 8881, 12284, 15836, 17762, 24568, 31672, 35524, 49136, 63344, 71048, 98272, 126688, 142096, 196544, 253376, 284192, 328597, 568384, 657194, 1314388, 2628776, 5257552, 10515104, 21030208]

約数ペア:

[(1, 21030208), (2, 10515104), (4, 5257552), (8, 2628776), (16, 1314388), (32, 657194), (37, 568384), (64, 328597), (74, 284192), (83, 253376), (107, 196544), (148, 142096), (166, 126688), (214, 98272), (296, 71048), (332, 63344), (428, 49136), (592, 35524), (664, 31672), (856, 24568), (1184, 17762), (1328, 15836), (1712, 12284), (2368, 8881), (2656, 7918), (3071, 6848), (3424, 6142), (3959, 5312)]