20686263

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{761}}^1$

素因数の和:835

約数の個数: 32

約数和(自身を含む): 32260032

約数和(自身を除く): 11573769

約数列:

[1, 3, 13, 17, 39, 41, 51, 123, 221, 533, 663, 697, 761, 1599, 2091, 2283, 9061, 9893, 12937, 27183, 29679, 31201, 38811, 93603, 168181, 405613, 504543, 530417, 1216839, 1591251, 6895421, 20686263]

約数ペア:

[(1, 20686263), (3, 6895421), (13, 1591251), (17, 1216839), (39, 530417), (41, 504543), (51, 405613), (123, 168181), (221, 93603), (533, 38811), (663, 31201), (697, 29679), (761, 27183), (1599, 12937), (2091, 9893), (2283, 9061)]