19805142

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 47185920

約数和(自身を除く): 27380778

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 79, 94, 127, 141, 158, 237, 254, 282, 329, 381, 474, 553, 658, 762, 889, 987, 1106, 1659, 1778, 1974, 2667, 3318, 3713, 5334, 5969, 7426, 10033, 11139, 11938, 17907, 20066, 22278, 25991, 30099, 35814, 41783, 51982, 60198, 70231, 77973, 83566, 125349, 140462, 155946, 210693, 250698, 421386, 471551, 943102, 1414653, 2829306, 3300857, 6601714, 9902571, 19805142]

約数ペア:

[(1, 19805142), (2, 9902571), (3, 6601714), (6, 3300857), (7, 2829306), (14, 1414653), (21, 943102), (42, 471551), (47, 421386), (79, 250698), (94, 210693), (127, 155946), (141, 140462), (158, 125349), (237, 83566), (254, 77973), (282, 70231), (329, 60198), (381, 51982), (474, 41783), (553, 35814), (658, 30099), (762, 25991), (889, 22278), (987, 20066), (1106, 17907), (1659, 11938), (1778, 11139), (1974, 10033), (2667, 7426), (3318, 5969), (3713, 5334)]