21014656

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 45967320

約数和(自身を除く): 24952664

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 73, 104, 128, 146, 173, 208, 292, 346, 416, 584, 692, 832, 949, 1168, 1384, 1664, 1898, 2249, 2336, 2768, 3796, 4498, 4672, 5536, 7592, 8996, 9344, 11072, 12629, 15184, 17992, 22144, 25258, 30368, 35984, 50516, 60736, 71968, 101032, 121472, 143936, 164177, 202064, 287872, 328354, 404128, 656708, 808256, 1313416, 1616512, 2626832, 5253664, 10507328, 21014656]

約数ペア:

[(1, 21014656), (2, 10507328), (4, 5253664), (8, 2626832), (13, 1616512), (16, 1313416), (26, 808256), (32, 656708), (52, 404128), (64, 328354), (73, 287872), (104, 202064), (128, 164177), (146, 143936), (173, 121472), (208, 101032), (292, 71968), (346, 60736), (416, 50516), (584, 35984), (692, 30368), (832, 25258), (949, 22144), (1168, 17992), (1384, 15184), (1664, 12629), (1898, 11072), (2249, 9344), (2336, 8996), (2768, 7592), (3796, 5536), (4498, 4672)]