20637246

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 49102848

約数和(自身を除く): 28465602

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 73, 106, 127, 146, 159, 219, 254, 318, 371, 381, 438, 511, 742, 762, 889, 1022, 1113, 1533, 1778, 2226, 2667, 3066, 3869, 5334, 6731, 7738, 9271, 11607, 13462, 18542, 20193, 23214, 27083, 27813, 40386, 47117, 54166, 55626, 64897, 81249, 94234, 129794, 141351, 162498, 194691, 282702, 389382, 491363, 982726, 1474089, 2948178, 3439541, 6879082, 10318623, 20637246]

約数ペア:

[(1, 20637246), (2, 10318623), (3, 6879082), (6, 3439541), (7, 2948178), (14, 1474089), (21, 982726), (42, 491363), (53, 389382), (73, 282702), (106, 194691), (127, 162498), (146, 141351), (159, 129794), (219, 94234), (254, 81249), (318, 64897), (371, 55626), (381, 54166), (438, 47117), (511, 40386), (742, 27813), (762, 27083), (889, 23214), (1022, 20193), (1113, 18542), (1533, 13462), (1778, 11607), (2226, 9271), (2667, 7738), (3066, 6731), (3869, 5334)]