21120588

素因数分解:

$2^2\times 3^6\times {\mathrm{7243}}^1$

素因数の和:7265

約数の個数: 42

約数和(自身を含む): 55423844

約数和(自身を除く): 34303256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 7243, 14486, 21729, 28972, 43458, 65187, 86916, 130374, 195561, 260748, 391122, 586683, 782244, 1173366, 1760049, 2346732, 3520098, 5280147, 7040196, 10560294, 21120588]

約数ペア:

[(1, 21120588), (2, 10560294), (3, 7040196), (4, 5280147), (6, 3520098), (9, 2346732), (12, 1760049), (18, 1173366), (27, 782244), (36, 586683), (54, 391122), (81, 260748), (108, 195561), (162, 130374), (243, 86916), (324, 65187), (486, 43458), (729, 28972), (972, 21729), (1458, 14486), (2916, 7243)]