401788269

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{261071}}^1$

素因数の和:261102

約数の個数: 20

約数和(自身を含む): 631794240

約数和(自身を除く): 230005971

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 261071, 783213, 2349639, 4960349, 7048917, 14881047, 21146751, 44643141, 133929423, 401788269]

約数ペア:

[(1, 401788269), (3, 133929423), (9, 44643141), (19, 21146751), (27, 14881047), (57, 7048917), (81, 4960349), (171, 2349639), (513, 783213), (1539, 261071)]