18936691221

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{45767}}^1$

素因数の和:45874

約数の個数: 64

約数和(自身を含む): 32689336320

約数和(自身を除く): 13752645099

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 61, 119, 133, 183, 323, 357, 399, 427, 969, 1037, 1159, 1281, 2261, 3111, 3477, 6783, 7259, 8113, 19703, 21777, 24339, 45767, 59109, 137301, 137921, 320369, 413763, 778039, 869573, 961107, 2334117, 2608719, 2791787, 5446273, 6087011, 8375361, 14782741, 16338819, 18261033, 19542509, 44348223, 47460379, 53043953, 58627527, 103479187, 142381137, 159131859, 310437561, 332222653, 371307671, 901747201, 996667959, 1113923013, 2705241603, 6312230407, 18936691221]

約数ペア:

[(1, 18936691221), (3, 6312230407), (7, 2705241603), (17, 1113923013), (19, 996667959), (21, 901747201), (51, 371307671), (57, 332222653), (61, 310437561), (119, 159131859), (133, 142381137), (183, 103479187), (323, 58627527), (357, 53043953), (399, 47460379), (427, 44348223), (969, 19542509), (1037, 18261033), (1159, 16338819), (1281, 14782741), (2261, 8375361), (3111, 6087011), (3477, 5446273), (6783, 2791787), (7259, 2608719), (8113, 2334117), (19703, 961107), (21777, 869573), (24339, 778039), (45767, 413763), (59109, 320369), (137301, 137921)]