21775664

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1259}}^1$

素因数の和:1337

約数の個数: 40

約数和(自身を含む): 44997120

約数和(自身を除く): 23221456

約数列:

[1, 2, 4, 8, 16, 23, 46, 47, 92, 94, 184, 188, 368, 376, 752, 1081, 1259, 2162, 2518, 4324, 5036, 8648, 10072, 17296, 20144, 28957, 57914, 59173, 115828, 118346, 231656, 236692, 463312, 473384, 946768, 1360979, 2721958, 5443916, 10887832, 21775664]

約数ペア:

[(1, 21775664), (2, 10887832), (4, 5443916), (8, 2721958), (16, 1360979), (23, 946768), (46, 473384), (47, 463312), (92, 236692), (94, 231656), (184, 118346), (188, 115828), (368, 59173), (376, 57914), (752, 28957), (1081, 20144), (1259, 17296), (2162, 10072), (2518, 8648), (4324, 5036)]