21271770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18181}}^1$

素因数の和:18207

約数の個数: 48

約数和(自身を含む): 59564232

約数和(自身を除く): 38292462

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 18181, 36362, 54543, 90905, 109086, 163629, 181810, 236353, 272715, 327258, 472706, 545430, 709059, 818145, 1181765, 1418118, 1636290, 2127177, 2363530, 3545295, 4254354, 7090590, 10635885, 21271770]

約数ペア:

[(1, 21271770), (2, 10635885), (3, 7090590), (5, 4254354), (6, 3545295), (9, 2363530), (10, 2127177), (13, 1636290), (15, 1418118), (18, 1181765), (26, 818145), (30, 709059), (39, 545430), (45, 472706), (65, 327258), (78, 272715), (90, 236353), (117, 181810), (130, 163629), (195, 109086), (234, 90905), (390, 54543), (585, 36362), (1170, 18181)]