21661952

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 48761664

約数和(自身を除く): 27099712

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 184, 208, 256, 283, 299, 368, 416, 566, 598, 736, 832, 1132, 1196, 1472, 1664, 2264, 2392, 2944, 3328, 3679, 4528, 4784, 5888, 6509, 7358, 9056, 9568, 13018, 14716, 18112, 19136, 26036, 29432, 36224, 38272, 52072, 58864, 72448, 76544, 84617, 104144, 117728, 169234, 208288, 235456, 338468, 416576, 470912, 676936, 833152, 941824, 1353872, 1666304, 2707744, 5415488, 10830976, 21661952]

約数ペア:

[(1, 21661952), (2, 10830976), (4, 5415488), (8, 2707744), (13, 1666304), (16, 1353872), (23, 941824), (26, 833152), (32, 676936), (46, 470912), (52, 416576), (64, 338468), (92, 235456), (104, 208288), (128, 169234), (184, 117728), (208, 104144), (256, 84617), (283, 76544), (299, 72448), (368, 58864), (416, 52072), (566, 38272), (598, 36224), (736, 29432), (832, 26036), (1132, 19136), (1196, 18112), (1472, 14716), (1664, 13018), (2264, 9568), (2392, 9056), (2944, 7358), (3328, 6509), (3679, 5888), (4528, 4784)]