21403131

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 31099200

約数和(自身を除く): 9696069

約数列:

[1, 3, 29, 37, 61, 87, 109, 111, 183, 327, 1073, 1769, 2257, 3161, 3219, 4033, 5307, 6649, 6771, 9483, 12099, 19947, 65453, 116957, 192821, 196359, 246013, 350871, 578463, 738039, 7134377, 21403131]

約数ペア:

[(1, 21403131), (3, 7134377), (29, 738039), (37, 578463), (61, 350871), (87, 246013), (109, 196359), (111, 192821), (183, 116957), (327, 65453), (1073, 19947), (1769, 12099), (2257, 9483), (3161, 6771), (3219, 6649), (4033, 5307)]