20419854

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 30383346

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 149, 182, 251, 273, 298, 447, 502, 546, 753, 894, 1043, 1506, 1757, 1937, 2086, 3129, 3263, 3514, 3874, 5271, 5811, 6258, 6526, 9789, 10542, 11622, 13559, 19578, 22841, 27118, 37399, 40677, 45682, 68523, 74798, 81354, 112197, 137046, 224394, 261793, 486187, 523586, 785379, 972374, 1458561, 1570758, 2917122, 3403309, 6806618, 10209927, 20419854]

約数ペア:

[(1, 20419854), (2, 10209927), (3, 6806618), (6, 3403309), (7, 2917122), (13, 1570758), (14, 1458561), (21, 972374), (26, 785379), (39, 523586), (42, 486187), (78, 261793), (91, 224394), (149, 137046), (182, 112197), (251, 81354), (273, 74798), (298, 68523), (447, 45682), (502, 40677), (546, 37399), (753, 27118), (894, 22841), (1043, 19578), (1506, 13559), (1757, 11622), (1937, 10542), (2086, 9789), (3129, 6526), (3263, 6258), (3514, 5811), (3874, 5271)]