21791632

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{739}}^1$

素因数の和:863

約数の個数: 40

約数和(自身を含む): 44962400

約数和(自身を除く): 23170768

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 97, 152, 194, 304, 388, 739, 776, 1478, 1552, 1843, 2956, 3686, 5912, 7372, 11824, 14041, 14744, 28082, 29488, 56164, 71683, 112328, 143366, 224656, 286732, 573464, 1146928, 1361977, 2723954, 5447908, 10895816, 21791632]

約数ペア:

[(1, 21791632), (2, 10895816), (4, 5447908), (8, 2723954), (16, 1361977), (19, 1146928), (38, 573464), (76, 286732), (97, 224656), (152, 143366), (194, 112328), (304, 71683), (388, 56164), (739, 29488), (776, 28082), (1478, 14744), (1552, 14041), (1843, 11824), (2956, 7372), (3686, 5912)]