31512231

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 18807129

約数列:

[1, 3, 9, 23, 41, 47, 69, 79, 123, 141, 207, 237, 369, 423, 711, 943, 1081, 1817, 1927, 2829, 3239, 3243, 3713, 5451, 5781, 8487, 9717, 9729, 11139, 16353, 17343, 29151, 33417, 44321, 74497, 85399, 132963, 152233, 223491, 256197, 398889, 456699, 670473, 768591, 1370097, 3501359, 10504077, 31512231]

約数ペア:

[(1, 31512231), (3, 10504077), (9, 3501359), (23, 1370097), (41, 768591), (47, 670473), (69, 456699), (79, 398889), (123, 256197), (141, 223491), (207, 152233), (237, 132963), (369, 85399), (423, 74497), (711, 44321), (943, 33417), (1081, 29151), (1817, 17343), (1927, 16353), (2829, 11139), (3239, 9729), (3243, 9717), (3713, 8487), (5451, 5781)]