21428946

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15461}}^1$

素因数の和:15487

約数の個数: 48

約数和(自身を含む): 57889728

約数和(自身を除く): 36460782

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 15461, 30922, 46383, 92766, 108227, 139149, 170071, 216454, 278298, 324681, 340142, 510213, 649362, 974043, 1020426, 1190497, 1530639, 1948086, 2380994, 3061278, 3571491, 7142982, 10714473, 21428946]

約数ペア:

[(1, 21428946), (2, 10714473), (3, 7142982), (6, 3571491), (7, 3061278), (9, 2380994), (11, 1948086), (14, 1530639), (18, 1190497), (21, 1020426), (22, 974043), (33, 649362), (42, 510213), (63, 340142), (66, 324681), (77, 278298), (99, 216454), (126, 170071), (154, 139149), (198, 108227), (231, 92766), (462, 46383), (693, 30922), (1386, 15461)]