21298688

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{2447}}^1$

素因数の和:2482

約数の個数: 40

約数和(自身を含む): 45077472

約数和(自身を除く): 23778784

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 2447, 4352, 4894, 8704, 9788, 19576, 39152, 41599, 78304, 83198, 156608, 166396, 313216, 332792, 626432, 665584, 1252864, 1331168, 2662336, 5324672, 10649344, 21298688]

約数ペア:

[(1, 21298688), (2, 10649344), (4, 5324672), (8, 2662336), (16, 1331168), (17, 1252864), (32, 665584), (34, 626432), (64, 332792), (68, 313216), (128, 166396), (136, 156608), (256, 83198), (272, 78304), (512, 41599), (544, 39152), (1088, 19576), (2176, 9788), (2447, 8704), (4352, 4894)]