20679484

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 43642368

約数和(自身を除く): 22962884

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 163, 197, 322, 326, 394, 644, 652, 788, 1141, 1379, 2282, 2758, 3749, 4531, 4564, 5516, 7498, 9062, 14996, 18124, 26243, 31717, 32111, 52486, 63434, 64222, 104972, 126868, 128444, 224777, 449554, 738553, 899108, 1477106, 2954212, 5169871, 10339742, 20679484]

約数ペア:

[(1, 20679484), (2, 10339742), (4, 5169871), (7, 2954212), (14, 1477106), (23, 899108), (28, 738553), (46, 449554), (92, 224777), (161, 128444), (163, 126868), (197, 104972), (322, 64222), (326, 63434), (394, 52486), (644, 32111), (652, 31717), (788, 26243), (1141, 18124), (1379, 14996), (2282, 9062), (2758, 7498), (3749, 5516), (4531, 4564)]