3998862

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 10368000

約数和(自身を除く): 6369138

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 126, 142, 149, 189, 213, 298, 378, 426, 447, 497, 639, 894, 994, 1043, 1278, 1341, 1491, 1917, 2086, 2682, 2982, 3129, 3834, 4023, 4473, 6258, 8046, 8946, 9387, 10579, 13419, 18774, 21158, 26838, 28161, 31737, 56322, 63474, 74053, 95211, 148106, 190422, 222159, 285633, 444318, 571266, 666477, 1332954, 1999431, 3998862]

約数ペア:

[(1, 3998862), (2, 1999431), (3, 1332954), (6, 666477), (7, 571266), (9, 444318), (14, 285633), (18, 222159), (21, 190422), (27, 148106), (42, 95211), (54, 74053), (63, 63474), (71, 56322), (126, 31737), (142, 28161), (149, 26838), (189, 21158), (213, 18774), (298, 13419), (378, 10579), (426, 9387), (447, 8946), (497, 8046), (639, 6258), (894, 4473), (994, 4023), (1043, 3834), (1278, 3129), (1341, 2982), (1491, 2682), (1917, 2086)]