21209056

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 46131120

約数和(自身を除く): 24922064

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 89, 176, 178, 352, 356, 677, 712, 979, 1354, 1424, 1958, 2708, 2848, 3916, 5416, 7447, 7832, 10832, 14894, 15664, 21664, 29788, 31328, 59576, 60253, 119152, 120506, 238304, 241012, 482024, 662783, 964048, 1325566, 1928096, 2651132, 5302264, 10604528, 21209056]

約数ペア:

[(1, 21209056), (2, 10604528), (4, 5302264), (8, 2651132), (11, 1928096), (16, 1325566), (22, 964048), (32, 662783), (44, 482024), (88, 241012), (89, 238304), (176, 120506), (178, 119152), (352, 60253), (356, 59576), (677, 31328), (712, 29788), (979, 21664), (1354, 15664), (1424, 14894), (1958, 10832), (2708, 7832), (2848, 7447), (3916, 5416)]