21103328

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{541}}^1$

素因数の和:627

約数の個数: 48

約数和(自身を含む): 44253216

約数和(自身を除く): 23149888

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 53, 92, 106, 184, 212, 368, 424, 541, 736, 848, 1082, 1219, 1696, 2164, 2438, 4328, 4876, 8656, 9752, 12443, 17312, 19504, 24886, 28673, 39008, 49772, 57346, 99544, 114692, 199088, 229384, 398176, 458768, 659479, 917536, 1318958, 2637916, 5275832, 10551664, 21103328]

約数ペア:

[(1, 21103328), (2, 10551664), (4, 5275832), (8, 2637916), (16, 1318958), (23, 917536), (32, 659479), (46, 458768), (53, 398176), (92, 229384), (106, 199088), (184, 114692), (212, 99544), (368, 57346), (424, 49772), (541, 39008), (736, 28673), (848, 24886), (1082, 19504), (1219, 17312), (1696, 12443), (2164, 9752), (2438, 8656), (4328, 4876)]