28138278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{953}}^1$

素因数の和:1021

約数の個数: 64

約数和(自身を含む): 69603840

約数和(自身を除く): 41465562

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 37, 38, 42, 57, 74, 111, 114, 133, 222, 259, 266, 399, 518, 703, 777, 798, 953, 1406, 1554, 1906, 2109, 2859, 4218, 4921, 5718, 6671, 9842, 13342, 14763, 18107, 20013, 29526, 35261, 36214, 40026, 54321, 70522, 105783, 108642, 126749, 211566, 246827, 253498, 380247, 493654, 669959, 740481, 760494, 1339918, 1480962, 2009877, 4019754, 4689713, 9379426, 14069139, 28138278]

約数ペア:

[(1, 28138278), (2, 14069139), (3, 9379426), (6, 4689713), (7, 4019754), (14, 2009877), (19, 1480962), (21, 1339918), (37, 760494), (38, 740481), (42, 669959), (57, 493654), (74, 380247), (111, 253498), (114, 246827), (133, 211566), (222, 126749), (259, 108642), (266, 105783), (399, 70522), (518, 54321), (703, 40026), (777, 36214), (798, 35261), (953, 29526), (1406, 20013), (1554, 18107), (1906, 14763), (2109, 13342), (2859, 9842), (4218, 6671), (4921, 5718)]