18884955

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 34467840

約数和(自身を除く): 15582885

約数列:

[1, 3, 5, 15, 19, 23, 43, 57, 67, 69, 95, 115, 129, 201, 215, 285, 335, 345, 437, 645, 817, 989, 1005, 1273, 1311, 1541, 2185, 2451, 2881, 2967, 3819, 4085, 4623, 4945, 6365, 6555, 7705, 8643, 12255, 14405, 14835, 18791, 19095, 23115, 29279, 43215, 54739, 56373, 66263, 87837, 93955, 146395, 164217, 198789, 273695, 281865, 331315, 439185, 821085, 993945, 1258997, 3776991, 6294985, 18884955]

約数ペア:

[(1, 18884955), (3, 6294985), (5, 3776991), (15, 1258997), (19, 993945), (23, 821085), (43, 439185), (57, 331315), (67, 281865), (69, 273695), (95, 198789), (115, 164217), (129, 146395), (201, 93955), (215, 87837), (285, 66263), (335, 56373), (345, 54739), (437, 43215), (645, 29279), (817, 23115), (989, 19095), (1005, 18791), (1273, 14835), (1311, 14405), (1541, 12255), (2185, 8643), (2451, 7705), (2881, 6555), (2967, 6365), (3819, 4945), (4085, 4623)]