21746072

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{397}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 42124320

約数和(自身を除く): 20378248

約数列:

[1, 2, 4, 8, 41, 82, 164, 167, 328, 334, 397, 668, 794, 1336, 1588, 3176, 6847, 13694, 16277, 27388, 32554, 54776, 65108, 66299, 130216, 132598, 265196, 530392, 2718259, 5436518, 10873036, 21746072]

約数ペア:

[(1, 21746072), (2, 10873036), (4, 5436518), (8, 2718259), (41, 530392), (82, 265196), (164, 132598), (167, 130216), (328, 66299), (334, 65108), (397, 54776), (668, 32554), (794, 27388), (1336, 16277), (1588, 13694), (3176, 6847)]