21245432

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3049}}^1$

素因数の和:3135

約数の個数: 32

約数和(自身を含む): 43554000

約数和(自身を除く): 22308568

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 3049, 3484, 6098, 6968, 12196, 24392, 39637, 79274, 158548, 204283, 317096, 408566, 817132, 1634264, 2655679, 5311358, 10622716, 21245432]

約数ペア:

[(1, 21245432), (2, 10622716), (4, 5311358), (8, 2655679), (13, 1634264), (26, 817132), (52, 408566), (67, 317096), (104, 204283), (134, 158548), (268, 79274), (536, 39637), (871, 24392), (1742, 12196), (3049, 6968), (3484, 6098)]