21130106912

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{111521}}^1$

素因数の和:111753

約数の個数: 48

約数和(自身を含む): 43167043584

約数和(自身を除く): 22036936672

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 191, 248, 382, 496, 764, 992, 1528, 3056, 5921, 6112, 11842, 23684, 47368, 94736, 111521, 189472, 223042, 446084, 892168, 1784336, 3457151, 3568672, 6914302, 13828604, 21300511, 27657208, 42601022, 55314416, 85202044, 110628832, 170404088, 340808176, 660315841, 681616352, 1320631682, 2641263364, 5282526728, 10565053456, 21130106912]

約数ペア:

[(1, 21130106912), (2, 10565053456), (4, 5282526728), (8, 2641263364), (16, 1320631682), (31, 681616352), (32, 660315841), (62, 340808176), (124, 170404088), (191, 110628832), (248, 85202044), (382, 55314416), (496, 42601022), (764, 27657208), (992, 21300511), (1528, 13828604), (3056, 6914302), (5921, 3568672), (6112, 3457151), (11842, 1784336), (23684, 892168), (47368, 446084), (94736, 223042), (111521, 189472)]