21121664

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5323}}^1$

素因数の和:5368

約数の個数: 32

約数和(自身を含む): 43443840

約数和(自身を除く): 22322176

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5323, 10646, 21292, 42584, 85168, 165013, 170336, 330026, 340672, 660052, 681344, 1320104, 2640208, 5280416, 10560832, 21121664]

約数ペア:

[(1, 21121664), (2, 10560832), (4, 5280416), (8, 2640208), (16, 1320104), (31, 681344), (32, 660052), (62, 340672), (64, 330026), (124, 170336), (128, 165013), (248, 85168), (496, 42584), (992, 21292), (1984, 10646), (3968, 5323)]