21195872

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{829}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 45178560

約数和(自身を除く): 23982688

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 68, 94, 136, 188, 272, 376, 544, 752, 799, 829, 1504, 1598, 1658, 3196, 3316, 6392, 6632, 12784, 13264, 14093, 25568, 26528, 28186, 38963, 56372, 77926, 112744, 155852, 225488, 311704, 450976, 623408, 662371, 1246816, 1324742, 2649484, 5298968, 10597936, 21195872]

約数ペア:

[(1, 21195872), (2, 10597936), (4, 5298968), (8, 2649484), (16, 1324742), (17, 1246816), (32, 662371), (34, 623408), (47, 450976), (68, 311704), (94, 225488), (136, 155852), (188, 112744), (272, 77926), (376, 56372), (544, 38963), (752, 28186), (799, 26528), (829, 25568), (1504, 14093), (1598, 13264), (1658, 12784), (3196, 6632), (3316, 6392)]