21284228

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^2\times {\mathrm{113}}^1$

素因数の和:193

約数の個数: 54

約数和(自身を含む): 45167598

約数和(自身を除く): 23883370

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 113, 124, 196, 217, 226, 434, 452, 791, 868, 961, 1519, 1582, 1922, 3038, 3164, 3503, 3844, 5537, 6076, 6727, 7006, 11074, 13454, 14012, 22148, 24521, 26908, 47089, 49042, 94178, 98084, 108593, 171647, 188356, 217186, 343294, 434372, 686588, 760151, 1520302, 3040604, 5321057, 10642114, 21284228]

約数ペア:

[(1, 21284228), (2, 10642114), (4, 5321057), (7, 3040604), (14, 1520302), (28, 760151), (31, 686588), (49, 434372), (62, 343294), (98, 217186), (113, 188356), (124, 171647), (196, 108593), (217, 98084), (226, 94178), (434, 49042), (452, 47089), (791, 26908), (868, 24521), (961, 22148), (1519, 14012), (1582, 13454), (1922, 11074), (3038, 7006), (3164, 6727), (3503, 6076), (3844, 5537)]