18516516

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 44448768

約数和(自身を除く): 25932252

約数列:

[1, 2, 3, 4, 6, 12, 71, 103, 142, 206, 211, 213, 284, 309, 412, 422, 426, 618, 633, 844, 852, 1236, 1266, 2532, 7313, 14626, 14981, 21733, 21939, 29252, 29962, 43466, 43878, 44943, 59924, 65199, 86932, 87756, 89886, 130398, 179772, 260796, 1543043, 3086086, 4629129, 6172172, 9258258, 18516516]

約数ペア:

[(1, 18516516), (2, 9258258), (3, 6172172), (4, 4629129), (6, 3086086), (12, 1543043), (71, 260796), (103, 179772), (142, 130398), (206, 89886), (211, 87756), (213, 86932), (284, 65199), (309, 59924), (412, 44943), (422, 43878), (426, 43466), (618, 29962), (633, 29252), (844, 21939), (852, 21733), (1236, 14981), (1266, 14626), (2532, 7313)]