21984354

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1171}}^1$

素因数の和:1335

約数の個数: 48

約数和(自身を含む): 54849600

約数和(自身を除く): 32865246

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 149, 298, 447, 894, 1043, 1171, 1341, 2086, 2342, 2682, 3129, 3513, 6258, 7026, 8197, 9387, 10539, 16394, 18774, 21078, 24591, 49182, 73773, 147546, 174479, 348958, 523437, 1046874, 1221353, 1570311, 2442706, 3140622, 3664059, 7328118, 10992177, 21984354]

約数ペア:

[(1, 21984354), (2, 10992177), (3, 7328118), (6, 3664059), (7, 3140622), (9, 2442706), (14, 1570311), (18, 1221353), (21, 1046874), (42, 523437), (63, 348958), (126, 174479), (149, 147546), (298, 73773), (447, 49182), (894, 24591), (1043, 21078), (1171, 18774), (1341, 16394), (2086, 10539), (2342, 9387), (2682, 8197), (3129, 7026), (3513, 6258)]