21756196

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{10091}}^1$

素因数の和:10120

約数の個数: 36

約数和(自身を含む): 48320496

約数和(自身を除く): 26564300

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 10091, 20182, 40364, 70637, 111001, 141274, 222002, 282548, 444004, 494459, 777007, 988918, 1554014, 1977836, 3108028, 5439049, 10878098, 21756196]

約数ペア:

[(1, 21756196), (2, 10878098), (4, 5439049), (7, 3108028), (11, 1977836), (14, 1554014), (22, 988918), (28, 777007), (44, 494459), (49, 444004), (77, 282548), (98, 222002), (154, 141274), (196, 111001), (308, 70637), (539, 40364), (1078, 20182), (2156, 10091)]