18109518

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2037

約数の個数: 48

約数和(自身を含む): 43513344

約数和(自身を除く): 25403826

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 49, 62, 93, 98, 147, 186, 217, 294, 434, 651, 1302, 1519, 1987, 3038, 3974, 4557, 5961, 9114, 11922, 13909, 27818, 41727, 61597, 83454, 97363, 123194, 184791, 194726, 292089, 369582, 431179, 584178, 862358, 1293537, 2587074, 3018253, 6036506, 9054759, 18109518]

約数ペア:

[(1, 18109518), (2, 9054759), (3, 6036506), (6, 3018253), (7, 2587074), (14, 1293537), (21, 862358), (31, 584178), (42, 431179), (49, 369582), (62, 292089), (93, 194726), (98, 184791), (147, 123194), (186, 97363), (217, 83454), (294, 61597), (434, 41727), (651, 27818), (1302, 13909), (1519, 11922), (1987, 9114), (3038, 5961), (3974, 4557)]