21832460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 49829472

約数和(自身を除く): 27997012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 641, 655, 1282, 1310, 1703, 2564, 2620, 3205, 3406, 6410, 6812, 8333, 8515, 12820, 16666, 17030, 33332, 34060, 41665, 83330, 83971, 166660, 167942, 335884, 419855, 839710, 1091623, 1679420, 2183246, 4366492, 5458115, 10916230, 21832460]

約数ペア:

[(1, 21832460), (2, 10916230), (4, 5458115), (5, 4366492), (10, 2183246), (13, 1679420), (20, 1091623), (26, 839710), (52, 419855), (65, 335884), (130, 167942), (131, 166660), (260, 83971), (262, 83330), (524, 41665), (641, 34060), (655, 33332), (1282, 17030), (1310, 16666), (1703, 12820), (2564, 8515), (2620, 8333), (3205, 6812), (3406, 6410)]