21415788

素因数分解:

$2^2\times 3^2\times {\mathrm{653}}^1\times {\mathrm{911}}^1$

素因数の和:1574

約数の個数: 36

約数和(自身を含む): 54276768

約数和(自身を除く): 32860980

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 653, 911, 1306, 1822, 1959, 2612, 2733, 3644, 3918, 5466, 5877, 7836, 8199, 10932, 11754, 16398, 23508, 32796, 594883, 1189766, 1784649, 2379532, 3569298, 5353947, 7138596, 10707894, 21415788]

約数ペア:

[(1, 21415788), (2, 10707894), (3, 7138596), (4, 5353947), (6, 3569298), (9, 2379532), (12, 1784649), (18, 1189766), (36, 594883), (653, 32796), (911, 23508), (1306, 16398), (1822, 11754), (1959, 10932), (2612, 8199), (2733, 7836), (3644, 5877), (3918, 5466)]