21228662

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{877}}^1$

素因数の和:925

約数の個数: 48

約数和(自身を含む): 42038640

約数和(自身を除く): 20809978

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 877, 931, 1274, 1729, 1754, 1862, 3458, 6139, 11401, 12103, 12278, 16663, 22802, 24206, 33326, 42973, 79807, 85946, 116641, 159614, 216619, 233282, 433238, 558649, 816487, 1117298, 1516333, 1632974, 3032666, 10614331, 21228662]

約数ペア:

[(1, 21228662), (2, 10614331), (7, 3032666), (13, 1632974), (14, 1516333), (19, 1117298), (26, 816487), (38, 558649), (49, 433238), (91, 233282), (98, 216619), (133, 159614), (182, 116641), (247, 85946), (266, 79807), (494, 42973), (637, 33326), (877, 24206), (931, 22802), (1274, 16663), (1729, 12278), (1754, 12103), (1862, 11401), (3458, 6139)]