21192704

素因数分解:

$2^{13}\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:238

約数の個数: 56

約数和(自身を含む): 45872400

約数和(自身を除く): 24679696

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 199, 208, 256, 398, 416, 512, 796, 832, 1024, 1592, 1664, 2048, 2587, 3184, 3328, 4096, 5174, 6368, 6656, 8192, 10348, 12736, 13312, 20696, 25472, 26624, 41392, 50944, 53248, 82784, 101888, 106496, 165568, 203776, 331136, 407552, 662272, 815104, 1324544, 1630208, 2649088, 5298176, 10596352, 21192704]

約数ペア:

[(1, 21192704), (2, 10596352), (4, 5298176), (8, 2649088), (13, 1630208), (16, 1324544), (26, 815104), (32, 662272), (52, 407552), (64, 331136), (104, 203776), (128, 165568), (199, 106496), (208, 101888), (256, 82784), (398, 53248), (416, 50944), (512, 41392), (796, 26624), (832, 25472), (1024, 20696), (1592, 13312), (1664, 12736), (2048, 10348), (2587, 8192), (3184, 6656), (3328, 6368), (4096, 5174)]