21036645

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 22301595

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 113, 135, 189, 197, 315, 339, 565, 591, 791, 945, 985, 1017, 1379, 1695, 1773, 2373, 2955, 3051, 3955, 4137, 5085, 5319, 6895, 7119, 8865, 11865, 12411, 15255, 20685, 21357, 22261, 26595, 35595, 37233, 62055, 66783, 106785, 111305, 155827, 186165, 200349, 333915, 467481, 601047, 779135, 1001745, 1402443, 2337405, 3005235, 4207329, 7012215, 21036645]

約数ペア:

[(1, 21036645), (3, 7012215), (5, 4207329), (7, 3005235), (9, 2337405), (15, 1402443), (21, 1001745), (27, 779135), (35, 601047), (45, 467481), (63, 333915), (105, 200349), (113, 186165), (135, 155827), (189, 111305), (197, 106785), (315, 66783), (339, 62055), (565, 37233), (591, 35595), (791, 26595), (945, 22261), (985, 21357), (1017, 20685), (1379, 15255), (1695, 12411), (1773, 11865), (2373, 8865), (2955, 7119), (3051, 6895), (3955, 5319), (4137, 5085)]