221657488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{2857}}^1$

素因数の和:3251

約数の個数: 40

約数和(自身を含む): 463899128

約数和(自身を除く): 242241640

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 373, 746, 1492, 2857, 2984, 4849, 5714, 5968, 9698, 11428, 19396, 22856, 37141, 38792, 45712, 74282, 77584, 148564, 297128, 594256, 1065661, 2131322, 4262644, 8525288, 13853593, 17050576, 27707186, 55414372, 110828744, 221657488]

約数ペア:

[(1, 221657488), (2, 110828744), (4, 55414372), (8, 27707186), (13, 17050576), (16, 13853593), (26, 8525288), (52, 4262644), (104, 2131322), (208, 1065661), (373, 594256), (746, 297128), (1492, 148564), (2857, 77584), (2984, 74282), (4849, 45712), (5714, 38792), (5968, 37141), (9698, 22856), (11428, 19396)]