19815972

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 53996544

約数和(自身を除く): 34180572

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 44, 46, 61, 66, 69, 92, 107, 122, 132, 138, 183, 214, 244, 253, 276, 321, 366, 428, 506, 642, 671, 732, 759, 1012, 1177, 1284, 1342, 1403, 1518, 2013, 2354, 2461, 2684, 2806, 3036, 3531, 4026, 4209, 4708, 4922, 5612, 6527, 7062, 7383, 8052, 8418, 9844, 13054, 14124, 14766, 15433, 16836, 19581, 26108, 27071, 29532, 30866, 39162, 46299, 54142, 61732, 71797, 78324, 81213, 92598, 108284, 143594, 150121, 162426, 185196, 215391, 287188, 300242, 324852, 430782, 450363, 600484, 861564, 900726, 1651331, 1801452, 3302662, 4953993, 6605324, 9907986, 19815972]

約数ペア:

[(1, 19815972), (2, 9907986), (3, 6605324), (4, 4953993), (6, 3302662), (11, 1801452), (12, 1651331), (22, 900726), (23, 861564), (33, 600484), (44, 450363), (46, 430782), (61, 324852), (66, 300242), (69, 287188), (92, 215391), (107, 185196), (122, 162426), (132, 150121), (138, 143594), (183, 108284), (214, 92598), (244, 81213), (253, 78324), (276, 71797), (321, 61732), (366, 54142), (428, 46299), (506, 39162), (642, 30866), (671, 29532), (732, 27071), (759, 26108), (1012, 19581), (1177, 16836), (1284, 15433), (1342, 14766), (1403, 14124), (1518, 13054), (2013, 9844), (2354, 8418), (2461, 8052), (2684, 7383), (2806, 7062), (3036, 6527), (3531, 5612), (4026, 4922), (4209, 4708)]