21507228

素因数分解:

$2^2\times 3^3\times {\mathrm{97}}^1\times {\mathrm{2053}}^1$

素因数の和:2163

約数の個数: 48

約数和(自身を含む): 56361760

約数和(自身を除く): 34854532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 97, 108, 194, 291, 388, 582, 873, 1164, 1746, 2053, 2619, 3492, 4106, 5238, 6159, 8212, 10476, 12318, 18477, 24636, 36954, 55431, 73908, 110862, 199141, 221724, 398282, 597423, 796564, 1194846, 1792269, 2389692, 3584538, 5376807, 7169076, 10753614, 21507228]

約数ペア:

[(1, 21507228), (2, 10753614), (3, 7169076), (4, 5376807), (6, 3584538), (9, 2389692), (12, 1792269), (18, 1194846), (27, 796564), (36, 597423), (54, 398282), (97, 221724), (108, 199141), (194, 110862), (291, 73908), (388, 55431), (582, 36954), (873, 24636), (1164, 18477), (1746, 12318), (2053, 10476), (2619, 8212), (3492, 6159), (4106, 5238)]