19643862

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 46886400

約数和(自身を除く): 27242538

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 73, 86, 129, 146, 149, 219, 258, 298, 301, 438, 447, 511, 602, 894, 903, 1022, 1043, 1533, 1806, 2086, 3066, 3129, 3139, 6258, 6278, 6407, 9417, 10877, 12814, 18834, 19221, 21754, 21973, 32631, 38442, 43946, 44849, 65262, 65919, 76139, 89698, 131838, 134547, 152278, 228417, 269094, 456834, 467711, 935422, 1403133, 2806266, 3273977, 6547954, 9821931, 19643862]

約数ペア:

[(1, 19643862), (2, 9821931), (3, 6547954), (6, 3273977), (7, 2806266), (14, 1403133), (21, 935422), (42, 467711), (43, 456834), (73, 269094), (86, 228417), (129, 152278), (146, 134547), (149, 131838), (219, 89698), (258, 76139), (298, 65919), (301, 65262), (438, 44849), (447, 43946), (511, 38442), (602, 32631), (894, 21973), (903, 21754), (1022, 19221), (1043, 18834), (1533, 12814), (1806, 10877), (2086, 9417), (3066, 6407), (3129, 6278), (3139, 6258)]