18661916

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{307}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 40567296

約数和(自身を除く): 21905380

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 167, 182, 307, 334, 364, 614, 668, 1169, 1228, 2149, 2171, 2338, 3991, 4298, 4342, 4676, 7982, 8596, 8684, 15197, 15964, 27937, 30394, 51269, 55874, 60788, 102538, 111748, 205076, 358883, 666497, 717766, 1332994, 1435532, 2665988, 4665479, 9330958, 18661916]

約数ペア:

[(1, 18661916), (2, 9330958), (4, 4665479), (7, 2665988), (13, 1435532), (14, 1332994), (26, 717766), (28, 666497), (52, 358883), (91, 205076), (167, 111748), (182, 102538), (307, 60788), (334, 55874), (364, 51269), (614, 30394), (668, 27937), (1169, 15964), (1228, 15197), (2149, 8684), (2171, 8596), (2338, 7982), (3991, 4676), (4298, 4342)]