21231308

素因数分解:

$2^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{727}}^1$

素因数の和:894

約数の個数: 36

約数和(自身を含む): 43570800

約数和(自身を除く): 22339492

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 149, 196, 298, 596, 727, 1043, 1454, 2086, 2908, 4172, 5089, 7301, 10178, 14602, 20356, 29204, 35623, 71246, 108323, 142492, 216646, 433292, 758261, 1516522, 3033044, 5307827, 10615654, 21231308]

約数ペア:

[(1, 21231308), (2, 10615654), (4, 5307827), (7, 3033044), (14, 1516522), (28, 758261), (49, 433292), (98, 216646), (149, 142492), (196, 108323), (298, 71246), (596, 35623), (727, 29204), (1043, 20356), (1454, 14602), (2086, 10178), (2908, 7301), (4172, 5089)]