21004792

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3767}}^1$

素因数の和:3831

約数の個数: 32

約数和(自身を含む): 42729120

約数和(自身を除く): 21724328

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3767, 5576, 7534, 15068, 30136, 64039, 128078, 154447, 256156, 308894, 512312, 617788, 1235576, 2625599, 5251198, 10502396, 21004792]

約数ペア:

[(1, 21004792), (2, 10502396), (4, 5251198), (8, 2625599), (17, 1235576), (34, 617788), (41, 512312), (68, 308894), (82, 256156), (136, 154447), (164, 128078), (328, 64039), (697, 30136), (1394, 15068), (2788, 7534), (3767, 5576)]