21773780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 56125440

約数和(自身を除く): 34351660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 31, 35, 58, 62, 70, 116, 124, 140, 145, 155, 173, 203, 217, 290, 310, 346, 406, 434, 580, 620, 692, 812, 865, 868, 899, 1015, 1085, 1211, 1730, 1798, 2030, 2170, 2422, 3460, 3596, 4060, 4340, 4495, 4844, 5017, 5363, 6055, 6293, 8990, 10034, 10726, 12110, 12586, 17980, 20068, 21452, 24220, 25085, 25172, 26815, 31465, 35119, 37541, 50170, 53630, 62930, 70238, 75082, 100340, 107260, 125860, 140476, 150164, 155527, 175595, 187705, 311054, 351190, 375410, 622108, 702380, 750820, 777635, 1088689, 1555270, 2177378, 3110540, 4354756, 5443445, 10886890, 21773780]

約数ペア:

[(1, 21773780), (2, 10886890), (4, 5443445), (5, 4354756), (7, 3110540), (10, 2177378), (14, 1555270), (20, 1088689), (28, 777635), (29, 750820), (31, 702380), (35, 622108), (58, 375410), (62, 351190), (70, 311054), (116, 187705), (124, 175595), (140, 155527), (145, 150164), (155, 140476), (173, 125860), (203, 107260), (217, 100340), (290, 75082), (310, 70238), (346, 62930), (406, 53630), (434, 50170), (580, 37541), (620, 35119), (692, 31465), (812, 26815), (865, 25172), (868, 25085), (899, 24220), (1015, 21452), (1085, 20068), (1211, 17980), (1730, 12586), (1798, 12110), (2030, 10726), (2170, 10034), (2422, 8990), (3460, 6293), (3596, 6055), (4060, 5363), (4340, 5017), (4495, 4844)]