21104658

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 49104000

約数和(自身を除く): 27999342

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 61, 86, 122, 129, 149, 183, 258, 298, 366, 387, 447, 549, 774, 894, 1098, 1161, 1341, 1647, 2322, 2623, 2682, 3294, 4023, 5246, 6407, 7869, 8046, 9089, 12814, 15738, 18178, 19221, 23607, 27267, 38442, 47214, 54534, 57663, 70821, 81801, 115326, 141642, 163602, 172989, 245403, 345978, 390827, 490806, 781654, 1172481, 2344962, 3517443, 7034886, 10552329, 21104658]

約数ペア:

[(1, 21104658), (2, 10552329), (3, 7034886), (6, 3517443), (9, 2344962), (18, 1172481), (27, 781654), (43, 490806), (54, 390827), (61, 345978), (86, 245403), (122, 172989), (129, 163602), (149, 141642), (183, 115326), (258, 81801), (298, 70821), (366, 57663), (387, 54534), (447, 47214), (549, 38442), (774, 27267), (894, 23607), (1098, 19221), (1161, 18178), (1341, 15738), (1647, 12814), (2322, 9089), (2623, 8046), (2682, 7869), (3294, 6407), (4023, 5246)]