20990172

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{14699}}^1$

素因数の和:14730

約数の個数: 48

約数和(自身を含む): 59270400

約数和(自身を除く): 38280228

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714, 1428, 14699, 29398, 44097, 58796, 88194, 102893, 176388, 205786, 249883, 308679, 411572, 499766, 617358, 749649, 999532, 1234716, 1499298, 1749181, 2998596, 3498362, 5247543, 6996724, 10495086, 20990172]

約数ペア:

[(1, 20990172), (2, 10495086), (3, 6996724), (4, 5247543), (6, 3498362), (7, 2998596), (12, 1749181), (14, 1499298), (17, 1234716), (21, 999532), (28, 749649), (34, 617358), (42, 499766), (51, 411572), (68, 308679), (84, 249883), (102, 205786), (119, 176388), (204, 102893), (238, 88194), (357, 58796), (476, 44097), (714, 29398), (1428, 14699)]