399156957

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 655257600

約数和(自身を除く): 256100643

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 157, 191, 261, 459, 471, 493, 573, 783, 1413, 1479, 1719, 2669, 3247, 4239, 4437, 4553, 5157, 5539, 8007, 9741, 13311, 13659, 16617, 24021, 29223, 29987, 40977, 49851, 72063, 77401, 87669, 89961, 94163, 122931, 149553, 232203, 269883, 282489, 509779, 696609, 809649, 847467, 869623, 1529337, 2089827, 2542401, 2608869, 4588011, 7826607, 13764033, 14783591, 23479821, 44350773, 133052319, 399156957]

約数ペア:

[(1, 399156957), (3, 133052319), (9, 44350773), (17, 23479821), (27, 14783591), (29, 13764033), (51, 7826607), (87, 4588011), (153, 2608869), (157, 2542401), (191, 2089827), (261, 1529337), (459, 869623), (471, 847467), (493, 809649), (573, 696609), (783, 509779), (1413, 282489), (1479, 269883), (1719, 232203), (2669, 149553), (3247, 122931), (4239, 94163), (4437, 89961), (4553, 87669), (5157, 77401), (5539, 72063), (8007, 49851), (9741, 40977), (13311, 29987), (13659, 29223), (16617, 24021)]