21000605336

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{683}}^1\times {\mathrm{953}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 40914007200

約数和(自身を除く): 19913401864

約数列:

[1, 2, 4, 8, 37, 74, 109, 148, 218, 296, 436, 683, 872, 953, 1366, 1906, 2732, 3812, 4033, 5464, 7624, 8066, 16132, 25271, 32264, 35261, 50542, 70522, 74447, 101084, 103877, 141044, 148894, 202168, 207754, 282088, 297788, 415508, 595576, 650899, 831016, 1301798, 2603596, 2754539, 3843449, 5207192, 5509078, 7686898, 11018156, 15373796, 22036312, 24083263, 30747592, 48166526, 70947991, 96333052, 141895982, 192666104, 283791964, 567583928, 2625075667, 5250151334, 10500302668, 21000605336]

約数ペア:

[(1, 21000605336), (2, 10500302668), (4, 5250151334), (8, 2625075667), (37, 567583928), (74, 283791964), (109, 192666104), (148, 141895982), (218, 96333052), (296, 70947991), (436, 48166526), (683, 30747592), (872, 24083263), (953, 22036312), (1366, 15373796), (1906, 11018156), (2732, 7686898), (3812, 5509078), (4033, 5207192), (5464, 3843449), (7624, 2754539), (8066, 2603596), (16132, 1301798), (25271, 831016), (32264, 650899), (35261, 595576), (50542, 415508), (70522, 297788), (74447, 282088), (101084, 207754), (103877, 202168), (141044, 148894)]