18949648

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 37997568

約数和(自身を除く): 19047920

約数列:

[1, 2, 4, 8, 16, 47, 94, 113, 188, 223, 226, 376, 446, 452, 752, 892, 904, 1784, 1808, 3568, 5311, 10481, 10622, 20962, 21244, 25199, 41924, 42488, 50398, 83848, 84976, 100796, 167696, 201592, 403184, 1184353, 2368706, 4737412, 9474824, 18949648]

約数ペア:

[(1, 18949648), (2, 9474824), (4, 4737412), (8, 2368706), (16, 1184353), (47, 403184), (94, 201592), (113, 167696), (188, 100796), (223, 84976), (226, 83848), (376, 50398), (446, 42488), (452, 41924), (752, 25199), (892, 21244), (904, 20962), (1784, 10622), (1808, 10481), (3568, 5311)]