3977428

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 8780800

約数和(自身を除く): 4803372

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 223, 343, 364, 446, 637, 686, 892, 1274, 1372, 1561, 2548, 2899, 3122, 4459, 5798, 6244, 8918, 10927, 11596, 17836, 20293, 21854, 40586, 43708, 76489, 81172, 142051, 152978, 284102, 305956, 568204, 994357, 1988714, 3977428]

約数ペア:

[(1, 3977428), (2, 1988714), (4, 994357), (7, 568204), (13, 305956), (14, 284102), (26, 152978), (28, 142051), (49, 81172), (52, 76489), (91, 43708), (98, 40586), (182, 21854), (196, 20293), (223, 17836), (343, 11596), (364, 10927), (446, 8918), (637, 6244), (686, 5798), (892, 4459), (1274, 3122), (1372, 2899), (1561, 2548)]