21537222

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 52462080

約数和(自身を除く): 30924858

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 137, 197, 266, 274, 394, 399, 411, 591, 798, 822, 959, 1182, 1379, 1918, 2603, 2758, 2877, 3743, 4137, 5206, 5754, 7486, 7809, 8274, 11229, 15618, 18221, 22458, 26201, 26989, 36442, 52402, 53978, 54663, 78603, 80967, 109326, 157206, 161934, 188923, 377846, 512791, 566769, 1025582, 1133538, 1538373, 3076746, 3589537, 7179074, 10768611, 21537222]

約数ペア:

[(1, 21537222), (2, 10768611), (3, 7179074), (6, 3589537), (7, 3076746), (14, 1538373), (19, 1133538), (21, 1025582), (38, 566769), (42, 512791), (57, 377846), (114, 188923), (133, 161934), (137, 157206), (197, 109326), (266, 80967), (274, 78603), (394, 54663), (399, 53978), (411, 52402), (591, 36442), (798, 26989), (822, 26201), (959, 22458), (1182, 18221), (1379, 15618), (1918, 11229), (2603, 8274), (2758, 7809), (2877, 7486), (3743, 5754), (4137, 5206)]