21525894

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1373}}^1$

素因数の和:1461

約数の個数: 48

約数和(自身を含む): 51013872

約数和(自身を除く): 29487978

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 67, 78, 117, 134, 201, 234, 402, 603, 871, 1206, 1373, 1742, 2613, 2746, 4119, 5226, 7839, 8238, 12357, 15678, 17849, 24714, 35698, 53547, 91991, 107094, 160641, 183982, 275973, 321282, 551946, 827919, 1195883, 1655838, 2391766, 3587649, 7175298, 10762947, 21525894]

約数ペア:

[(1, 21525894), (2, 10762947), (3, 7175298), (6, 3587649), (9, 2391766), (13, 1655838), (18, 1195883), (26, 827919), (39, 551946), (67, 321282), (78, 275973), (117, 183982), (134, 160641), (201, 107094), (234, 91991), (402, 53547), (603, 35698), (871, 24714), (1206, 17849), (1373, 15678), (1742, 12357), (2613, 8238), (2746, 7839), (4119, 5226)]