21067746

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 50976000

約数和(自身を除く): 29908254

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 49, 58, 87, 98, 147, 174, 203, 294, 343, 353, 406, 609, 686, 706, 1029, 1059, 1218, 1421, 2058, 2118, 2471, 2842, 4263, 4942, 7413, 8526, 9947, 10237, 14826, 17297, 19894, 20474, 29841, 30711, 34594, 51891, 59682, 61422, 71659, 103782, 121079, 143318, 214977, 242158, 363237, 429954, 501613, 726474, 1003226, 1504839, 3009678, 3511291, 7022582, 10533873, 21067746]

約数ペア:

[(1, 21067746), (2, 10533873), (3, 7022582), (6, 3511291), (7, 3009678), (14, 1504839), (21, 1003226), (29, 726474), (42, 501613), (49, 429954), (58, 363237), (87, 242158), (98, 214977), (147, 143318), (174, 121079), (203, 103782), (294, 71659), (343, 61422), (353, 59682), (406, 51891), (609, 34594), (686, 30711), (706, 29841), (1029, 20474), (1059, 19894), (1218, 17297), (1421, 14826), (2058, 10237), (2118, 9947), (2471, 8526), (2842, 7413), (4263, 4942)]